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The Three Lines Model and Risk Oversight

Risk governance · 1 min read

The three lines

First line owns and manages risk; second line provides expertise and challenge; third line, internal audit, gives independent assurance.

The governing body oversees all three lines and is accountable for risk governance.

Where IT roles sit

RoleUsual line
Business process ownersFirst
IT operations and developmentFirst
IT risk function, risk practitionerSecond
Compliance; often information securitySecond
Internal auditThird

Keeping the lines clean

  • The first line owns risk and runs controls.
  • The second line sets the method, monitors and challenges, but doesn’t own.
  • The third line stays independent; it doesn’t design or run controls.
  • All three coordinate so effort isn’t duplicated and gaps don’t appear.

Example. A second-line risk team started approving firewall changes itself to speed things up. Within a year it was effectively running a first-line control, and nobody independent was challenging network risk.

How the exam asks about it

If the question asks…The answer is usually…
Who provides independent assuranceInternal audit (third line)
Who owns IT operational riskFirst-line management
Role of the risk functionSecond line: frameworks, monitoring, challenge
Who oversees all threeThe governing body

In short

  • The first line owns and manages risk: business and operational management, including IT operations.
  • The second line provides expertise, frameworks, monitoring and challenge: risk management, compliance and often security.
  • The third line, internal audit, provides independent assurance to the governing body.
  • The governing body oversees all three and is accountable for risk governance.
  • Each line must keep its role: the second line advises rather than owns, and audit stays independent.

Exam traps

  • Placing internal audit in the first or second line.
  • Making the second line the owner of first-line risks.
  • Letting internal audit design controls it will later assess.
  • Assuming the lines can't cooperate; they should coordinate without merging roles.

Slides

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CRISC · Domain 1 · Risk governance

The Three Lines Model and Risk Oversight

How the Three Lines Model divides responsibility for owning risk, overseeing it and giving independent assurance, and where the risk practitioner and IT sit.

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