SecurityNovember 4, 202625 min read

Top CISSP Interview Questions & Answers (2026)

17 questions Security Manager or Security Architect interviewers actually ask, with the strong answer, the weak one, and the follow-up that comes next.

  • Security LeadRole
  • $141K-$210KTypical US pay
  • 4-5 roundsInterview loop
  • Often requiredCert in hiring
  • UsuallyHands-on test
CISSP interview questions and answers - interviewer and candidate speech bubbles
New CISSP exam outline from 15 April 2027ISC2 says that starting 15 April 2027 the CISSP exam will be based on a new exam outline. Until then the outline effective 15 April 2024 applies. Check ISC2's outline for domain changes before booking; the interview skills on this page do not depend on which version you sit.

The CISSP is a senior credential, so the jobs it leads to are senior too: security manager, security architect, head of security at a mid-sized company, or a principal role inside a larger security team. Hiring managers are usually a CISO, CIO or CTO, and they are looking for someone who can turn risk into decisions the business will fund, not someone who only knows tools.

In 2026 these loops run four or five rounds and almost always include a case study or presentation: a 90-day plan, an architecture review, or a mock incident briefing to executives. Expect governance and framework questions, identity, cloud and zero trust design, third-party risk, incident leadership and plenty of stakeholder stories. The CISSP clears the filter and proves breadth. The interview tests judgment, influence and whether you can explain residual risk to people who do not care about acronyms.

What the Security Manager or Security Architect interview loop looks like

Most Security Manager or Security Architect hiring runs 5 rounds. Each one is testing something different, so prepare for each separately.

1
Recruiter screenRecruiter or search firm partner · 30 minScope of past roles, team size and budget you owned, reporting line, compensation and location expectationsTip: Quantify your scope in one breath: people managed, budget, number of business units, and the frameworks or regulations you operated under.
2
Hiring manager interviewCISO, CIO or CTO · 45-60 minLeadership style, how you prioritize, how you talk about risk, and fit with the current security programTip: Ask early what keeps them up at night, then anchor later answers to that. It turns a quiz into a working conversation.
3
Technical or architecture panelSenior engineers, architects, IT leads · 60 minDepth on identity, cloud, network segmentation and secure SDLC, and whether engineers would respect your callsTip: Go one level deeper than the slide version on at least two topics. Engineers test whether a senior hire can still read a design.
4
Case study presentationHiring manager plus two or three peers · 45-60 minStructured thinking, prioritization under constraints, and how you present to non-specialistsTip: Keep it to five or six slides, lead with the top three risks and the decisions you need from them, and leave half the time for questions.
5
Executive stakeholder roundCFO, general counsel or business leaders · 30-45 minBusiness language, credibility with non-technical leaders, and how you handle pushbackTip: Talk in money, time and customer impact. If you use a framework name, explain what it means for them in the same sentence.

The 17 questions, with answers

Each card shows the question as it is usually asked, what the interviewer is really checking, a strong answer, the weak answer they hear most often, and the follow-up that comes next. Say the strong answers in your own words — a memorised script sounds memorised.

  • Basic · 4
  • Core · 5
  • Advanced · 3
  • Scenario · 3
  • Behavioural · 2
Basic · 4Warm-up questions. Fluff these and the rest of the interview is uphill.
Q01BasicSecurity and Risk Management
Interviewer

When you tell an executive team that something is a high risk, what exactly do you mean, and how do you express it so they can act?

What they are testing: Clear separation of threat, vulnerability, likelihood and impact, framed in business terms

Strong answer

A threat is something that could act against us, a vulnerability is a weakness it could use, and risk is the combination: how likely that is and what it would cost the business if it happened. So 'high risk' should never mean 'scary CVE'. When I brief executives, I tie it to an asset or process they care about, give a likelihood based on evidence such as exposure and active exploitation, and describe impact in money, downtime, regulatory or customer terms. Then I give options: reduce, transfer, avoid or accept, with cost and residual risk for each, and I name the person who owns the decision.

Weak answer'High risk means the vulnerability scanner rated it critical.' That is a technical severity score, not business risk, and executives cannot act on it.
Next they will askWould you put a dollar figure on that risk? When does quantifying help and when does it give false precision?
Q02BasicSecurity and Risk Management
Interviewer

Explain the difference between a policy, a standard, a procedure and a guideline. Who should own and approve each one?

What they are testing: Governance document hierarchy and realistic ownership

Strong answer

A policy is a short, high-level statement of intent and expectation, such as 'all access to company systems requires multi-factor authentication'. Senior leadership approves it, so it carries authority. A standard makes the policy measurable and mandatory: which MFA methods are acceptable, for which systems. Security usually owns standards, with IT input. A procedure is the step-by-step how-to that a team follows, owned by the team doing the work. A guideline is recommended but optional advice. I keep policies stable and short, so they are not rewritten every time a tool changes, and push the detail into standards and procedures that can change faster.

Weak answer'They are all basically the security policy.' Lumping them together produces 80-page policies nobody reads and nobody can update quickly.
Next they will askHow do you handle a team that cannot meet a standard, for example a legacy system that cannot support MFA?
Q03BasicSecurity Architecture and Engineering
Interviewer

Is zero trust just defense in depth with a new name? How would you explain the difference to our CIO?

What they are testing: Whether you understand zero trust as an architecture, not a product, and can explain it plainly

Strong answer

They overlap but they are not the same. Defense in depth means layering controls so one failure is not fatal. Zero trust, as NIST SP 800-207 describes it, removes implicit trust based on network location: every request is authenticated and authorized based on identity, device health and context, with the least access needed, and is continuously re-evaluated. So the inside of the network is not treated as safe. I would tell the CIO that zero trust is a direction we move toward over years, starting with strong identity and device posture for our most sensitive apps, not a product we buy and switch on.

Weak answer'Zero trust means we buy a ZTNA product to replace the VPN.' Confuses one component with the architecture and sets up a failed project.
Next they will askWhere would you start a zero trust program in a company with a flat network and a VPN everyone uses?
Q04BasicAsset Security
Interviewer

How would you set up data classification here, and who is the data owner versus the data custodian?

What they are testing: Practical classification scheme and correct role assignment

Strong answer

I keep the scheme small, usually three or four levels such as public, internal, confidential and restricted, because nobody applies seven levels consistently. Each level gets clear handling rules for storage, sharing, encryption and retention. The data owner is a business leader accountable for that data, for example the head of HR for employee records. They decide classification and who should have access. The custodian, usually IT or a platform team, implements and operates the controls the owner requires: backups, encryption, access configuration. Security sets the framework and checks it works. Then I would focus labeling and data loss prevention on the restricted tier first, where the impact is highest.

Weak answer'IT owns the data because it is on IT systems.' Puts accountability in the wrong place, so access decisions are made by people who do not know the business need.
Next they will askA department refuses to classify its data because it is too much work. What do you do?
Core · 5The day-to-day knowledge the job runs on. Most of the score comes from here.
Q05CoreSecurity and Risk Management
Interviewer

You join a 2,000-person company with a small security team and no formal program. How would you use a framework to build one?

What they are testing: Program-building method: assess, prioritize, roadmap, govern, rather than buying tools

Strong answer

I would use NIST CSF 2.0 as the backbone because it is outcome-based and maps to most other frameworks, and its Govern function forces the conversation about roles, risk appetite and oversight. In the first 60 days I build a current profile by interviewing IT and business leaders and checking evidence, not just questionnaires. Then I agree a target profile with leadership based on our risks and obligations, such as customer contracts or regulations. The gap becomes a prioritized roadmap, usually starting with identity, asset inventory, backups and logging. I set up a risk register and a regular steering meeting so decisions and exceptions are owned by the business, and I report progress against the target profile.

Weak answer'First I would buy an EDR and a SIEM.' Tools before knowing assets, risks and gaps means spending the budget before you know what matters.
Next they will askLeadership wants ISO 27001 certification in 12 months. How does that change your plan?
Q06CoreIdentity and Access Management
Interviewer

How would you design identity and access management for a hybrid workforce using SaaS, cloud and some on-prem systems?

What they are testing: Modern IAM architecture: SSO, phishing-resistant MFA, lifecycle, privileged access

Strong answer

Identity becomes the main control plane, so I start with one authoritative identity provider and single sign-on for as many apps as possible, with the HR system driving joiner, mover and leaver events so access is created and removed automatically. For authentication I push phishing-resistant MFA, such as FIDO2 security keys or passkeys, starting with admins and high-risk roles, and use conditional access to check device health and context. Privileged access goes through a PAM tool with just-in-time elevation and session recording, and standing admin rights shrink over time. Then quarterly access reviews owned by managers, and monitoring for risky sign-ins and dormant accounts.

Weak answer'We enable MFA everywhere.' Necessary but shallow: no lifecycle automation, no privileged access plan, and SMS codes are still phishable.
Next they will askThe leaver process takes HR three days to trigger. What risk does that create and how do you close it?
Q07CoreSoftware Development Security
Interviewer

Developers here see security as the team that slows releases down. How would you build security into the SDLC without becoming a bottleneck?

What they are testing: Secure SDLC at scale and the ability to influence engineering culture

Strong answer

I would make the secure path the easy path. Practically: lightweight threat modeling for new features that touch sensitive data or change trust boundaries, not for every ticket. Static analysis, dependency scanning and secrets detection in the CI pipeline, tuned so they only block on high-confidence, high-severity findings and everything else goes into the backlog. Hardened templates and approved libraries so teams start from a secure baseline. A security champion in each team who gets training and early access to the security team. I would measure time to fix critical findings rather than counting findings, and publish it, so teams compete on response rather than hiding issues.

Weak answer'Every release needs a security sign-off.' A manual gate at release time is exactly the bottleneck they complain about, and it finds issues too late.
Next they will askA scanner blocks a production hotfix because of a medium-severity finding. What should happen?
Q08CoreSecurity Assessment and Testing
Interviewer

Which security metrics would you report to the executive team or board, and which ones would you deliberately keep off the slide?

What they are testing: Outcome-focused metrics versus vanity counts

Strong answer

I report metrics that show risk going up or down and that leaders can act on. Examples: percentage of critical systems covered by EDR and centralized logging, phishing-resistant MFA coverage for privileged and remote access, time to patch internet-facing systems for vulnerabilities known to be exploited, time to detect and contain incidents, backup restore test results, and the trend in open high risks and expired exceptions. I keep raw counts off the slide, like number of blocked attacks or total vulnerabilities, because a big number tells them nothing about whether we are safer. Every metric gets a target and an owner, so a red number leads to a decision, not just concern.

Weak answer'We blocked 4 million attacks this quarter.' A vanity count with no target and no decision attached; boards have learned to ignore it.
Next they will askOne metric has been red for three quarters and nobody has funded the fix. How do you escalate it?
Q09CoreCommunication and Network Security
Interviewer

Our network is largely flat. How would you approach segmentation without breaking the business?

What they are testing: Pragmatic network security architecture and change planning

Strong answer

First I need visibility: what talks to what, from flow logs, firewall logs or a discovery tool, and an inventory of critical systems. Then I segment by risk, not by drawing a perfect diagram. The first moves are usually separating management interfaces and admin access, isolating crown-jewel systems such as finance and identity infrastructure, putting operational technology and IoT devices in their own zones, and limiting server-to-server traffic to what is needed. I would run new rules in monitor mode or with logging first, agree a change window with each application owner, and roll out zone by zone. Longer term, identity-based microsegmentation for the most sensitive workloads fits the zero trust direction.

Weak answer'Put in VLANs and firewall rules between them.' Mechanically right, but with no discovery or phased rollout it either breaks applications or ends with allow-any rules.
Next they will askAn application owner says they cannot tell you which ports their app uses. How do you proceed?
Advanced · 3Depth checks. They separate the cert holder from the practitioner.
Q10AdvancedSecurity Architecture and Engineering
Interviewer

We are moving our customer-facing application to a public cloud provider. Walk me through the security architecture you would want in place before go-live.

What they are testing: Cloud shared responsibility, guardrails, identity, logging and data protection at architecture level

Strong answer

I start with the shared responsibility model so everyone knows what the provider secures and what we still own: identity, configuration, data and the application. Then a landing zone with separate accounts or subscriptions per environment, organization-level guardrails that prevent things like public storage or disabled logging, and central log collection in an account the workload teams cannot alter. Identity is federated from our IdP, with no long-lived access keys and least-privilege roles. Data is encrypted with keys we manage, secrets live in a secrets manager, and the public edge has a WAF and DDoS protection. Infrastructure is deployed as code and scanned in the pipeline, with posture monitoring catching drift.

Weak answer'The cloud provider handles security.' Misreads shared responsibility; most cloud breaches come from customer-side misconfiguration and identity mistakes.
Next they will askA team needs an exception to deploy a public storage bucket for a marketing site. How do you handle it?
Q11AdvancedSecurity Operations
Interviewer

How do you set recovery objectives with the business, and how should those numbers shape our backup and disaster recovery design?

What they are testing: BIA-driven RTO and RPO, plus ransomware-resilient recovery

Strong answer

It starts with a business impact analysis: for each critical process, how long can it be down and how much data can we lose before the damage is unacceptable. That gives the maximum tolerable downtime, and inside it the recovery time objective and recovery point objective. RTO drives architecture, for example warm standby versus restore from backup. RPO drives backup frequency or replication. Because ransomware targets backups, I want at least one immutable or offline copy, backup systems on separate credentials from the main domain, and regular restore tests that prove we can hit the RTO. If a business owner asks for a 15-minute RTO, I show what it costs, and the business decides.

Weak answer'We back everything up nightly, so we are covered.' No link to business needs, no restore testing, and backups reachable by the same admin accounts attackers steal.
Next they will askYour last restore test took three times longer than the RTO. Who do you tell and what happens next?
Q12AdvancedSecurity Architecture and Engineering
Interviewer

How are you thinking about cryptography over the next few years, including key management and post-quantum migration?

What they are testing: Crypto governance and awareness of current post-quantum standards without hype

Strong answer

The foundation is key management: knowing where keys live, using HSMs or cloud key management services for important keys, rotating them, and separating who can use keys from who can administer them. On post-quantum, NIST published its first standards in August 2024, FIPS 203, 204 and 205, so this is now a planning item, not science fiction. The near-term risk is harvest now, decrypt later for data that must stay confidential for many years. So my first step is a cryptographic inventory: which systems use which algorithms, especially RSA and elliptic curve for key exchange. Then I push for crypto agility in new systems and ask vendors for their post-quantum roadmaps.

Weak answer'Quantum is years away, so it is not a priority.' Ignores harvest-now-decrypt-later and the fact that inventory and vendor migration take years.
Next they will askWhich systems in a typical company would you prioritize in that cryptographic inventory, and why?
Scenario · 3Something is broken or ambiguous. They want your reasoning out loud, in order.
Q13ScenarioSecurity and Risk Management
Interviewer

A business unit wants to sign a contract with a SaaS vendor that will hold customer personal data. They want to sign in five days. What do you do?

What they are testing: Risk-based third-party assessment under time pressure, without being the department of no

Strong answer

First I find out the data involved and how critical the service is, because that sets how deep we go. For customer personal data the vendor is high tier. In five days I can review their SOC 2 Type II or ISO 27001 certificate, check the report period, exceptions and the controls they expect us to operate, look at how they handle SSO, MFA and encryption, and check breach history. Legal and I make sure the contract has breach notification timelines, data location and deletion terms, and a right to assess. If gaps remain, I write them up with options: sign with conditions and a remediation date, or accept the risk formally with the business owner's signature.

Weak answer'Security needs six weeks for a full assessment, so they will have to wait.' Ignores the business timeline, so the unit signs anyway and security loses visibility.
Next they will askThe vendor has no SOC 2 report and will not answer a questionnaire. What now?
Q14ScenarioSecurity Operations
Interviewer

It is Friday evening. The SOC tells you ransomware is encrypting file shares in one region. As the security leader, walk me through the first few hours.

What they are testing: Incident leadership: containment, evidence, legal, communications and decision rights

Strong answer

I activate the incident response plan and set up a command structure: one incident lead, a technical lead, and a separate channel for executive updates, so engineers are not answering the CEO every ten minutes. Containment first: isolate affected segments, disable compromised accounts, and protect backups and identity infrastructure. We preserve evidence rather than wiping machines. I bring in legal early and, if we have them, our incident response retainer and cyber insurer, since both affect what we do next. Legal leads on notification obligations; if we are a US public company, a materiality determination starts the SEC's four-business-day clock. Executives decide business questions like ransom; I give them facts and options.

Weak answer'I would restore everything from backup straight away.' Without knowing how the attacker got in and whether backups are clean, you restore into a compromised environment.
Next they will askThe CEO asks you directly whether you recommend paying the ransom. What do you say?
Q15ScenarioSecurity and Risk Management
Interviewer

A penetration test finds critical issues in a new system a week before go-live. The CIO says the launch date cannot move. How do you handle it?

What they are testing: Risk acceptance process, compensating controls, and keeping credibility with leadership

Strong answer

I would not frame it as security versus the CIO. First I validate the findings and rank them by real exploitability and impact, because 'critical' from a tester is not automatically critical for us. For each one I look for what can be fixed or mitigated in a week: a WAF rule, disabling a feature, restricting access to known users, extra monitoring. Whatever is left becomes a documented risk acceptance signed by the accountable business owner, with compensating controls and a fix date, usually 30 to 60 days. I make sure the residual risk is described plainly, so the person signing understands what they are accepting. Then I track the dates and report if they slip.

Weak answer'I would block the go-live.' Security rarely owns that decision; trying to veto without options usually means you are overruled and excluded next time.
Next they will askThe fix date passes and the team has not fixed anything. What do you do?
Behavioural · 2How you work with people. Templates below - fill them with your own story.
Q16BehaviouralSoft skills
Interviewer

Tell me about a time you got budget or buy-in for a security initiative from people who did not want it.

What they are testing: Influence, business framing and persistence with senior stakeholders

Strong answer (template)

This is a STAR template to fill with your own story. Situation: leadership had rejected a privileged access management project twice as too expensive. Task: I needed approval in the next budget cycle. Action: I stopped presenting it as a tool and showed how many accounts had standing domain admin rights, mapped that to a recent ransomware case in our sector, and partnered with the IT director, whose team was spending hours on manual password rotation. I proposed a phased option covering the riskiest accounts first, at a fraction of the cost. Result: phase one was funded, standing admin accounts dropped sharply within six months, and phase two was approved without debate.

Weak answer'I escalated to the CEO and they made them do it.' Shows power used once, not influence, and suggests peers will resist you next time.
Next they will askWhat did you have to give up or compromise on to get that approval?
Q17BehaviouralSoft skills
Interviewer

Tell me about a security decision you made that turned out to be wrong. How did you find out and what did you do?

What they are testing: Self-awareness, accountability and learning at a senior level

Strong answer (template)

Treat this as a template and use a real decision of your own. Situation: I approved blocking all personal cloud storage at the proxy to stop data leakage. Task: reduce a real risk quickly. Action: within a week, the research team, who shared large datasets with external partners, had moved to unapproved workarounds that were worse than before. I owned it in the leadership meeting, rolled back to monitoring for that team, and worked with them to set up an approved sharing platform with logging. Result: the leakage risk came down and the research lead became an ally. Lesson: talk to the most affected users before a broad control goes live.

Weak answerPicks a fake weakness or a decision that was really someone else's fault. Senior interviewers read it as an inability to own mistakes.
Next they will askHow do you now test the business impact of a new control before rolling it out?

Get the theory airtight before the interview

Interviewers build follow-ups on the fundamentals. The CISSP app has exam-style CISSP questions with an explanation for every option, so the basics stay automatic when the questions get harder.

App StoreGoogle PlayFree CISSP practice test

The practical task

Expect some version of this. Companies vary the details, not the shape.

PRACTICAL TASKPresent a 12-month security roadmap for a mid-sized companyCase presentation, 45 min

You receive a two-page brief two days ahead: a 1,500-person company using Microsoft 365, a public cloud platform and a flat on-prem network. A phishing incident last quarter led to a compromised finance mailbox. There is no security leader, a team of two analysts and a modest budget. Present your top risks, what you would do in the first 90 days, and a 12-month roadmap, then take questions from the panel.

  1. Restate the business context and your assumptions in one slide, and say what you would verify in your first weeks.
  2. Name the top three to five risks in business terms, each tied to evidence from the brief.
  3. Separate quick wins in 90 days, such as phishing-resistant MFA for finance and admins, from longer programs.
  4. Show the roadmap with rough cost, owner and the decisions you need from leadership.
  5. Explain how you would measure progress and report it to executives each quarter.
  6. Leave half the time for questions, and answer pushback with trade-offs rather than defending every item.

Hire vs no-hire:Hires prioritize ruthlessly, tie every item to a risk from the brief, and ask leadership for specific decisions. No-hires present a generic tool shopping list or a 40-item plan with no sequencing.

Questions to ask them

"Do you have any questions for us?" is still being scored. Four that land well for a Security Manager or Security Architect role:

Where does security report today, and how often does the security leader present to the board or audit committee?Reveals real authority and visibility, and shows you care about governance, not just tooling.
What is the biggest risk you already know about that is not funded or owned yet?Gets to the real job quickly and shows you expect to make hard calls from day one.
How are risk acceptances made here, and who signs them?Tests whether accountability sits with the business, which decides whether you can succeed in the role.
If we sat down in twelve months, what would you need to see to say this hire worked?Surfaces the real success measures and positions you as someone who plans to deliver against them.

Mistakes that sink candidates

MistakeAnswering every question at tool level, down to configuration settingsInsteadLead with risk and business impact, then name the controls. Go deep technically when asked; the architecture panel will ask.
MistakeSaying no to the business without offering an alternativeInsteadGive options with residual risk and cost for each, and let the accountable owner decide. That is the senior role.
MistakeListing frameworks without saying how you used themInsteadPick one and describe what you did with it: the assessment, the gaps found, and what changed as a result.
MistakeClaiming security owns risk decisionsInsteadSay that business owners accept risk and security advises, measures and escalates. Interviewers listen for this.
MistakeVague leadership claims with no scopeInsteadGive numbers: team size, budget, programs delivered, and one decision you made that a junior person could not have.

What the CISSP does and does not prove

What the CISSP gets you

The CISSP is one of the most requested certifications in security manager, architect and senior engineer postings, and it is common in US government and defense contractor requirements. Because ISC2 requires five years of paid experience across its domains before it grants the full credential, recruiters read it as a signal of seniority and breadth, and many postings use it as a hard filter.

What it does not prove

It does not prove you have led a team, owned a budget, built a program from scratch, designed cloud architecture, or briefed a board during an incident. The exam is broad and managerial but still multiple choice. Interviews test judgment under ambiguity, stakeholder influence, and whether engineers would trust your technical calls, which is why case studies and architecture panels carry most of the weight.

Pay:Range is from the Robert Half 2027 Salary Guide national figures: security architect $141,000 to $179,500 and systems security manager $144,500 to $209,750. BLS put the May 2025 median for information security analysts at $129,180. Scope, industry, clearance, location and people management move it most.

Still sitting the CISSP?

Pass it first time and walk into the interview with the credential on your CV. The CISSP app has exam-style CISSP questions with an explanation for every option.

App StoreGoogle PlayFree CISSP practice test

FAQ

Is a CISSP enough to get a security manager job?

Rarely on its own. It gets you through filters, but hiring managers look for evidence you have led something: a program, a team, a major project or an incident response. If you are moving up from an engineering role, frame past work around decisions, prioritization and stakeholders. Managing a small team or owning a cross-team initiative counts if you can describe the outcome.

How technical will a security architect interview be?

More technical than the CISSP exam. Expect to draw and critique designs: identity flows, cloud account structures, network zones, logging pipelines and how data is protected. Panels often include engineers who check whether you can go one or two levels below the diagram. You will not usually be asked to configure anything live, but you must explain trade-offs and failure modes.

How should I prepare for the case study or presentation round?

Treat it as a meeting with executives, not an exam. State your assumptions, prioritize three to five risks, and show a sequenced plan with rough costs and the decisions you need. Keep slides sparse and rehearse a short version in case time runs short. Most of the scoring happens in the questions, so leave room for them and stay calm under pushback.

I am moving from a hands-on engineering role into security management. What do panels worry about?

That you will keep doing the technical work yourself and not lead through others, or that you will struggle to talk to executives. Address it directly with examples where you delegated, mentored, made a prioritization call, or explained a risk to a non-technical leader. Show you still value technical depth, but that your value now is in decisions and direction.

Should I bring a 30-60-90 day plan even if they do not ask for one?

A short, flexible outline can help in the hiring manager or final round, as long as it is clearly built on what you heard in earlier interviews and framed as a starting hypothesis. A rigid plan written before you understand the company reads as arrogance. One page with listen, assess and first quick wins is usually enough.

Sources

Figures on this page come from ISC2 and the other primary sources below:

Checked November 4, 2026. Fees, outlines and eligibility rules change — confirm with ISC2 before you book.