How should a TA assess and manage insider risk?

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Insider risk is best managed with a layered approach that combines technical controls, governance, and a security-minded culture. Implementing access controls restricts what insiders can do to the minimum necessary for their role, using principles like least privilege, need-to-know, role-based access, and multi-factor authentication. This reduces the potential damage from any single compromised or misused account.

Having robust monitoring adds a detective layer: logs, anomaly detection, and data-loss prevention help spot unusual or unauthorized activity early, so responses can be swift and targeted. Separation of duties further lowers risk by ensuring no single person can complete critical actions alone—so critical tasks require collaboration and oversight, which also creates checks and balances.

A culture of security, supported by clear policies, ongoing training, and safe channels for reporting concerns, makes good security practices a shared responsibility. Whistleblower channels provide a trusted way for people to raise suspicions without fear, enabling timely intervention before incidents escalate.

The other options miss essential elements: increasing insider access raises the potential for abuse; focusing only on external threats neglects the people who already have access; and ignoring insider risk leaves a significant, often internal, source of harm unaddressed.