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CISO Times

Intelligence for the people behind the defence.

The CISO Decision Brief

How do we…

How do we decide which pre-employment screening and employment terms our ISMS needs?

7 decision pointsThe pack behind this answer: ISO 27001 Implementation & Certification Readiness

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The short answer

Recommendation
Set proportionate checks by role, confirm with HR and your legal adviser what each country allows, extend the checks to contractors through the contract, and block access until the check is complete. Sample recent joiners to prove it.
Reasoning
Auditors sample recent joiners, contractors included, and look for checks done for some roles and not others with no reason recorded, and for checks completed after access started. The law on what you may check differs by country, so a single checklist copied from elsewhere can itself be a breach.
Considerations
  • The standard's text is paywalled. The controls are described from the pack's Library and public guides, which are secondary.
  • Screening and the data it creates are regulated by employment and data protection law that varies by country. CISO Times states no country rules.
  • Smaller organisations can describe their approach in the Statement of Applicability. Larger ones usually write a screening procedure.
  • The control asks for checks before people join and on an ongoing basis, within the law. Set a rule with HR and your legal adviser for when existing staff are checked again, for example on a move into a more sensitive role.

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. A code beside a source, such as RR-17, is the number of a rule in that pack document; the document lists its rules.

Read as text

The same flow written out: each step, its reasoning and where the pack covers it. 21 steps.
  1. Start

    People join us and we need screening and terms the ISMS can stand on

    Three Annex A controls meet here: screening of people before they get access, terms of employment that carry security duties, and confidentiality agreements. The auditor samples recent joiners, contractors included. The decisions are how deep the checks go for each kind of role, what the law lets you check, and who proves it was done before the first day of access.

    In the pack

  2. Step

    Group roles by what they can reach

    List the kinds of role and what each can see or do: customer data, privileged access, money, source code. Three or four groups are enough. This is the basis for proportionate checks, and it uses the same classification and access thinking as the rest of the ISMS.

    In the pack

  3. Step

    Set the checks for each group

    The pack's guidance is proportionate checks by role: identity and, where the law requires or allows, right to work for all, references and qualifications for most, deeper checks for privileged or finance roles. Write the levels down as a standard. A standard that applies the same check to everyone, or to no one, is hard to defend. Say when existing staff are checked again.

    In the pack

  4. Decision

    Does the law where each person works allow each check?

    What you may ask about, check and keep differs by country and sometimes by role, and data protection and employment law both bite. CISO Times gives no country rules. Not known takes the no branch, because a check that breaks the law is worse than none.

    In the pack

  5. Step

    Ask HR and legal for each country, then adjust the standard

    Ask them which checks are allowed, what consent or notice is needed, how long results can be kept and who may see them. Drop or change a check that is not allowed and say so in the standard. Do not copy another country's practice.

    In the pack

  6. Decision

    Do contractors and agency staff with access get equivalent checks?

    The control covers people who are not on your payroll too. A common finding is contractors engaged on the agency's paperwork alone. Either the agency or supplier does the checks and shows evidence, or you do them.

    In the pack

  7. Step

    Put the check in the agency or supplier contract; ask for evidence

    Say which checks are required for which kind of access, who does them, and that you may ask for confirmation. Keep the confirmation with the access request. If neither the agency nor the supplier will do them, do them yourselves or limit the access.

    In the pack

  8. Decision

    Is every check complete before access starts?

    The common mistake in the pack's guidance is checks done after access is already granted. A rule on paper does not prevent that. Make completion a condition of the access request, so the account cannot be created without it.

    In the pack

  9. Step

    Make completion of the check a condition of the access request

    Have HR or the agency confirm completion before the account is created. For an urgent start, agree a narrow route in advance: limited access until completion, approved by a named person and recorded. Treat it as an exception, not as the way things are done.

    In the pack

  10. Decision

    Do contracts state security duties, including after leaving?

    Employment contracts and contractor agreements should carry confidentiality and security responsibilities and refer to the policies. A common finding is old templates without security terms still in use. Sign before access, not after.

    In the pack

  11. Step

    Add the security terms to the templates with Legal

    Include confidentiality, responsibility for following the security policies, and obligations that continue after the person leaves. Make sure the terms are signed before access. Fix current staff on old templates at the next change, as the law allows, and not only new joiners.

    In the pack

  12. Decision

    Do outsiders sign a confidentiality agreement before they see secrets?

    Third parties include customers, partners, consultants and suppliers before a full contract is signed. The usual mistake is information shared before the agreement exists, or agreements with no end date or return clause.

    In the pack

  13. Step

    Keep standard agreements and record who has signed

    Keep templates reviewed by Legal, with an end date and a return or destruction clause. Record who has signed and review the templates when needs change. The rule is simple: no confidential information goes out before the signature.

    In the pack

  14. Step

    Have people acknowledge the security policies and keep the record

    The terms refer to the policies, so people must have seen them. Keep the acknowledgement with the personnel record, and use the induction material to explain what is expected.

  15. Step

    Write the rule for adverse results before the first case

    Decide who judges whether a result matters for the role, what the person can say in reply, and who decides. Local law may limit what you can take into account. The hiring decision stays with HR and the hiring manager. Security advises on the access risk. Write the rule now, even if no case has come up.

    In the pack

  16. Decision

    Does a check give an adverse or unclear result?

    A result has come back that is adverse or unclear for the role. The rule you wrote decides what happens next. If no case has come up yet, the rule is still written and waiting.

    In the pack

  17. Step

    Follow the rule: judge relevance, hear the person, record the decision

    Judge the result against the role and its access, give the person a chance to explain where the law and fairness require it, and record who decided and why. Do not hold results longer than the law allows. Offer a lower-risk role or access where that is sensible.

    In the pack

  18. Step

    Sample recent joiners, contractors included

    Take a sample of recent joiners and contractors and check each against the standard: the checks complete before access, the terms signed, the policies acknowledged. Include people who started in a hurry. This is what the auditor samples, and the usual finding is checks done for some roles and not others with no reason recorded.

    In the pack

  19. Decision

    Did the sample show someone without a completed check or signed terms?

    Any gap is a finding about the process, not only about the person. Fix both: complete the check or remove the access, then fix the step that let it through.

    In the pack

  20. Step

    Complete the check or remove access, fix the gate and sample again

    Complete the missing check, or remove the access until it is done. Find why the gate failed and close it, whether it was a hurry, a missing HR step or an agency that did not confirm. Then take a fresh sample.

    In the pack

  21. Outcome

    Screening and terms set by role, applied before access and sampled

    Keep the standard, the legal advice on what you may check, the sample result and the signed terms. Do not say all staff are vetted if some roles are not checked, or that checks are the same in every country. Say what you do and where the law limits it.

    In the pack

Practical checklist

  1. Group roles by what they can reach.
  2. Set the checks for each group, write the standard and say when existing staff are checked again.
  3. Confirm with HR and your legal adviser what each country allows.
  4. Cover contractors and agency staff through the contract and ask for evidence.
  5. Make completion a condition of the access request.
  6. Check contracts, confidentiality agreements and acknowledgements, then sample recent joiners.

Evidence to have ready

  • The screening standard by role, with the legal advice behind it.
  • Completion records for a sample of recent joiners and contractors.
  • Contract templates with the security terms and signed copies.
  • Signed confidentiality agreements and policy acknowledgements.

Assumptions

  • Roles have named owners, and HR can confirm when a check is complete.
  • A legal adviser can say what each check allows in each country where you employ or engage people.
  • You can stop an account being created until HR or the agency confirms completion.

Not covered here