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CISO Times

Intelligence for the people behind the defence.

The CISO Decision Brief

How do we…

How do I hand over the function when I leave?

6 decision pointsThe pack behind this answer: CISO Transition, Handover & First 90 Days

Add to board memo

The short answer

Recommendation
Complete the handover form before your last day, starting with the access only you hold, then incidents, risks, exceptions, promises and dates. Mark every gap, sign only when the gaps are listed and dated, and see that a fresh extract confirms your access has gone.
Reasoning
The form records what you believe, hold and have promised, so the new leader checks it against proof. A short, honest form with its gaps marked is worth more than a long one that hides them. Live access, a dropped incident and a forgotten promise are among the risks the pack names for a handover. Renewing exceptions or promising on the new leader's behalf takes decisions that are no longer yours.
Considerations
  • What you must hand over, and whether you can be asked for help after you leave, depends on your contract and any leaving agreement. HR and Legal confirm it.
  • The pack covers a successor in post, or one who builds the form from records later. If nobody starts before your last day, a judgement: ask the executive sponsor to name one person to receive the form.
  • Where counsel confirms NIS2 applies, the management body is told through the sponsor that the head of security has changed: the board, a board committee, the management board in a two-tier structure, or executive management where there is no board.
  • The 2 working days to confirm access removal is the pack's default. Your own standard may set another limit.

The decision, step by step

Select any step for the reasoning behind it and where the pack covers it.

  • Start
  • Step
  • Decision
  • Outcome
  • Loop back

Keyboard: Tab to a step, arrow keys move along the flow, Enter pins its explanation, + and − zoom, 0 fits the diagram, Esc closes. The text version below has the same content.

Where a step quotes a number, it is the default in the CISO Times pack. Your own standard may set a different one.

Read as text

The same flow written out: each step, its reasoning and where the pack covers it. 20 steps.
  1. Start

    I am leaving, and someone else will run the security function

    The pack's idea is to learn before promising and to decide who decides. Your part is to make that possible: say what you hold, what you have promised and what is open, and check the account of it yourself. A short, honest handover with its gaps marked is worth more than a long one that hides them.

    In the pack

  2. Step

    Confirm with HR and Legal what you must hand over, and by when

    What an outgoing leader must hand over, and whether they can be asked for help after the last day, depends on the contract and any leaving agreement. HR confirms the departure date and notice terms. Legal confirms the duty and decides how any later request is made. Nothing in the pack is advice on employment.

    In the pack

  3. Decision

    Is a successor, or an interim, starting before your last day?

    The form is completed by you and checked by the person who takes over. If nobody is named yet, or you do not know the start date, answer no. The route then names someone to receive the form so that it does not wait for a new leader.

    In the pack

  4. Step

    Ask the executive sponsor to name who receives the form

    Judgement, not a pack rule: the pack covers a new leader who has started, or one who builds the form from records after you have gone. Where no successor exists, ask the executive sponsor to name one person to receive it, hold the records and sign for receipt, so that it is not left on a shared drive. That person need not be security staff.

    In the pack

  5. Step

    List every account, token, secret and portal login only you hold

    Start here, because access is the section that cannot wait. List each account, administrator right, token, shared secret and vendor portal login you hold or alone know, including any personal account used for work. Write where a secret is held and how it passes on. Never write a password, token or key in the form.

    In the pack

  6. Decision

    Is any incident, or any reporting duty, still open?

    Include incidents closed in the last 12 months whose review is not done. If you cannot tell from the incident log, answer yes. An open incident or an unmet reporting duty dropped at a handover is one of the pack's named risks.

    In the pack

  7. Step

    List each one, with the incident manager and the deputy

    Name who holds each incident role and who deputises, and list what is still open. Do not restate roles, decision rights, severities or clocks. Those belong to the incident packs and the handover changes none of them. The new leader confirms the holders in writing in week 1.

    In the pack

  8. Step

    List open risks, exceptions, promises and critical suppliers

    Fill HD-03, HD-04, HD-06 and HD-07. Include verbal promises and anything you track in your own notes. Where a section is empty, write None with the date and the name of the person who says so. A blank section counts as a gap, and a promise to a customer goes in even if a tracker also holds it.

    In the pack

  9. Decision

    Is any exception or risk acceptance past its review date?

    Check the review date on each entry in HD-04. If you have not checked, answer yes. Inherited items past their date are a named risk. The new leader reviews them within the first period, and nothing continues by default.

    In the pack

  10. Step

    Mark it past review, and leave the decision with its approver

    Judgement: do not renew items in your last days to clear the list. Mark each one in the past-review column and say what you know. The approver is set by the band (P02 EX-05, P05 RM-08), and nobody approves an exception they requested. The new leader takes the decision only where the published rule names the Head of Information Security.

    In the pack

  11. Step

    Complete scope, roles, contacts, programme state and calendar

    Fill HD-01, HD-02, HD-08, HD-10 and HD-11. None is not an acceptable answer in these: if a section is empty, say what is missing and who was asked. Include the regulator, the insurer and the responders with named contacts, every date due in the next 90 days, and each role and delegation you hold. Introduce the new leader to the contacts. They confirm each by a call.

    In the pack

  12. Decision

    Can you complete every section before your last day?

    Complete means each section lists entries, or says None with a date and a name where None is allowed. If you cannot say, answer no. Admitting a gap early lets the new leader plan for it. Hiding one leaves them to find it.

    In the pack

  13. Step

    Mark open sections Partial, with the date the rest is due

    Say which sections are incomplete, who you asked and when the rest will follow. Until it arrives the section counts as partial. Agree with HR and Legal how you can be asked after you leave, because whether you can be asked depends on your contract. Early, polite questions are often answered.

    In the pack

  14. Decision

    Does the organisation come under NIS2, as counsel confirms?

    Whether an organisation is an essential or an important entity is for counsel to confirm, so the form makes no claim. If counsel has not said, answer yes. The reason is NIS2 Article 20: it asks the management body to approve the cybersecurity risk-management measures and to oversee their implementation.

    In the pack

  15. Step

    Ask the sponsor to tell the management body the leader is changing

    Through the executive sponsor, the management body is told that the head of security has changed and what has been handed over. It is the board, a board committee or the management board, whichever governs your organisation, or executive management where there is no board. Counsel confirms what this means for the management body's liability. Open notifications and the registration with the authority go in HD-05 and HD-08.

    In the pack

  16. Step

    Go through the form with the receiver, then both sign

    Book an hour or two to walk through it. Sign HD-12 only when the gaps are listed and dated. Signing records that the form was handed over. It does not say every entry is true. The new leader treats each entry as Described only until they have seen a record, a test or a system view. If you have gone before the walk-through, the new leader builds the form from records and writes down what is missing.

    In the pack

  17. Step

    On your last day, IT removes your access

    Your accounts, administrator rights, tokens, shared secrets, vendor portals and any personal account used for work end that day. The Head of IT does the removal and the new leader answers for it. Hand over where each secret is held before you go, so that rotating it does not break a service.

    In the pack

  18. Decision

    Does a fresh extract still show any account of yours?

    Within the pack's default of 2 working days, a fresh extract of accounts and privileged rights is compared with your HD-09 list and the HR leaver record. If nobody has taken one yet, answer yes. Ask each system owner for any account only you knew.

    In the pack

  19. Step

    Remove what remains, then confirm again

    Remove each remaining account, right, token or portal login, and rotate any secret you knew. Then take another fresh extract. Repeat until it shows nothing of yours.

    In the pack

  20. Outcome

    Handed over: the form is signed, gaps are dated and access is gone

    The new leader now checks each section against a record, a test or a system view, and each gap that needs work becomes a plan item. Your involvement ends here unless your contract and Legal agree that you can be asked about gaps.

    In the pack

Practical checklist

  1. Confirm with HR and Legal what you must hand over, and by when.
  2. List every account, administrator right, token, shared secret and vendor portal login you hold, and where each secret is held. Never write a secret in the form.
  3. List each open incident and reporting duty with the incident manager and deputy, without restating roles or clocks.
  4. List open risks, promises and critical suppliers, and write None with a date and a name where a section allows it.
  5. Mark any exception or risk acceptance past its review date, and leave the decision with the approver its band sets.
  6. Complete roles, contacts, programme state and every date due in the next 90 days, and mark any unfinished section Partial with its due date.
  7. Walk through the form with the receiver, and both sign once the gaps are listed and dated.
  8. Have your access removed on your last day, and remove whatever a fresh extract still shows until it shows nothing (rule TR-08).

Evidence to have ready

  • The signed handover form, each section complete, with None dated and named, or marked Partial with a due date.
  • The fresh extract compared with the access list and the HR leaver record, showing nothing of yours left.
  • The list of open incidents and reporting duties with the named role holders and deputies.
  • The exceptions and risk acceptances with their bands and review dates, and those past review marked.

Assumptions

  • You know your departure date, or can ask HR for it, and an executive sponsor exists who can name a receiver.
  • The deadlines and counts shown, such as 2 working days to confirm access removal, are the defaults in the CISO Times transition pack. Your own standard may set different ones.
  • What you must hand over, and whether you can be asked for help after you leave, depends on your contract. HR and Legal confirm it. Nothing here is employment advice.

Not covered here