Which requirement ensures information security responsibilities are defined for all personnel?

Which requirement ensures information security responsibilities are defined for all personnel?

• A. Requirement 12.3.8
• B. Requirement 12.5.2
• C. Requirement 12.4
• D. Requirement 12.3

Answer: (C)

Defining information security responsibilities for all personnel is about ensuring accountability and clear expectations. PCI DSS requires that security roles and responsibilities be established, documented, and communicated so everyone knows what security duties apply to them and who is responsible for specific tasks. This formal assignment prevents gaps and overlaps, making it easier to enforce controls and respond to incidents. This matches the requirement that assigns security duties to personnel and makes those duties known organization-wide, so even staff without direct access to sensitive data understand their responsibility to protect it. Other options touch on broad policy, training, or third-party considerations, but they don’t specifically ensure that every person has clearly defined security responsibilities.

Defining information security responsibilities for all personnel is about ensuring accountability and clear expectations. PCI DSS requires that security roles and responsibilities be established, documented, and communicated so everyone knows what security duties apply to them and who is responsible for specific tasks. This formal assignment prevents gaps and overlaps, making it easier to enforce controls and respond to incidents.

This matches the requirement that assigns security duties to personnel and makes those duties known organization-wide, so even staff without direct access to sensitive data understand their responsibility to protect it. Other options touch on broad policy, training, or third-party considerations, but they don’t specifically ensure that every person has clearly defined security responsibilities.