Rethinking Security for the Age of AI
Microsoft, Monday, July 27th, 2026
Microsoft introduces Project Perception, arguing the falling cost of offence requires a new cyber stack.
Microsoft argues that the physics of cybersecurity are changing: autonomous systems can now reason, adapt, and operate continuously, while the cost of offence falls and the volume and complexity of what must be secured keeps growing.
Attackers can generate campaigns at a scale and speed that human-paced defence cannot match. The post introduces Project Perception as Microsoft's answer, a rethinking of the security stack around continuous autonomous operation rather than periodic human review.
It sets out the design principles and what changes for defenders. The piece frames the shift as structural rather than incremental.