Enterprise Defenses Recovered at the Edge and Collapsed Inside

Enterprise defenses have been effective at the edge, but vulnerable inside. Attackers have been successful by using stealthy methods that do not trigger detections. A recent report by Picus Labs, based on over 338 million attack simulations, found that defenses are performing well overall. However, the report suggests that this success may be limited to external threats. The average prevention effectiveness of these defenses is highlighted in the report, which analyzed data from the first half of 2026. The findings indicate a contrast between strong external defenses and weaker internal protections.