TriNet's 2025 Form 10-K Item 1C describes its cybersecurity risk management program, governance structure (CSO, IRM Steering Committee, ERM Steering Committee, Risk Committee), use of an internal risk control framework modeled on NIST CSF, third-party vendor risk monitoring, and incident response process. The company states it is not aware of any cybersecurity threats that have materially affected or are reasonably likely to materially affect it. No specific cybersecurity incident is disclosed.