Federal Agencies Warn of Ongoing PLC Exploitation Against Critical U.S. Infrastructure Trend Micro Research News By: Jamal Bethea 22 July 2026 at 20:00 TrendAIβ’ Research breaks down what changed in CISAβs updated advisory on an ongoing PLC exploitation, why this activity might be more dangerous than a similar campaign in 2023, and how organizations can take action now to protect themselves.