CISA Advisory: Critical Infrastructure Targeting Increases in Q1 2026
CISA has issued a joint advisory highlighting a significant increase in cyber operations targeting critical infrastructure sectors in Q1 2026. Healthcare and financial services organizations are among the most targeted.
The advisory identifies several new TTPs (tactics, techniques, and procedures) being used by threat actors, including novel supply chain compromise vectors and living-off-the-land techniques that evade traditional endpoint detection.
For mid-market organizations, the implications are clear: the threat landscape is intensifying, and organizations that haven't updated their security posture in the last 12 months are increasingly exposed.
Rezyl Take
HIPAA-covered entities and financial services firms should reassess their incident response plans immediately. Specifically: ensure your security monitoring is tuned for the latest TTPs identified in this advisory, validate your backup and recovery procedures, and conduct a tabletop exercise with your leadership team. If you haven't done a security posture assessment in the last year, now is the time.