Federal Agency Tests Two Critical Infrastructure Firms in Red Team Exercise

The other organization did not detect the activity, letting the red team stay

In August 2026, the U. S. Cybersecurity and Infrastructure Security Agency conducted simultaneous red team assessments against two critical infrastructure organizations. Both entities operate essential services, yet only one detected the simulated intrusion, highlighting stark differences in defensive readiness during the exercise. The assessments used identical tactics to mimic real adversaries. One organization’s security team noticed the intrusion early and cut off the attacker. The other organization did not detect the activity, letting the red team stay inside the network for the full engagement period. These divergent outcomes reveal gaps in monitoring and incident response capabilities. Both engagements lasted several weeks, allowing the red team to test multiple attack vectors and evaluate the organizations’ incident response playbooks. Red Team Tactics Mirror Real Threats CISA’s report states the two assessments ran at the same time, employing the same adversary techniques.

Latest news

Apple unveils new iPhone lineup next weekNordVPN Browser Extension Gets Redesigned Interface and Smarter SearchUgreen's DXP6800 Pro NAS Benefits From Additional Network UpgradeGoogle Gemini Error Strands Climbers on Mount Shasta

The other organization did not detect the activity, letting the red team stay inside the network for the entire trial. CISA noted the successful detection came from continuous packet capture and behavioral analytics, while the missed organization lacked telemetry and used periodic log reviews. This disparity underscores the need for real‑time visibility in high‑risk sectors. How Did the Red Team Evade Detection? The red team applied the same techniques against both sites. The undetected organization relied on legacy monitoring tools that failed to flag the activity. In contrast, the other site had up‑to‑date alerts that triggered a rapid shutdown. CISA says the findings will inform stronger monitoring standards and faster incident response protocols for critical infrastructure.

Both organizations have begun revising their security controls based on the red team lessons. Frequently Asked Questions What motivated CISA to run these simultaneous red team tests? CISA wanted to see how two similar organizations would respond when faced with the same attack scenario. The tests were scheduled to evaluate detection speed and containment effectiveness across different security postures. Results help shape future guidance for critical infrastructure defenders. Did either organization suffer any real damage during the exercise? The simulations were confined to controlled environments, so no production systems were harmed. Both entities reported that the attacks were stopped before causing operational impact. The exercise provided valuable lessons without endangering services.