Sophos Fusion Launches as an AI-Native Cybersecurity Defense System
Sophos Fusion Launches as an AI-Native Cybersecurity Defense System
https://www.sophos.com/blog/sophos-fusion
Publish Date: 2026-07-15 09:01:00
Source Domain: www.sophos.com
Something shifted in late 2025 that I don’t think our industry has fully reckoned with yet.
When frontier AI models crossed a new capability threshold towards the end of last year – developing the kind of ability that lets nearly any adversary generate working exploit code, craft convincing social engineering at scale, and chain attacks that cross security product boundaries autonomously – the threat landscape didn’t just evolve. It accelerated into a different category entirely.
The speed, scale, and scope of attacks all shifted in the adversary’s favor simultaneously. Intrusions that used to unfold over days and hours now play out in minutes and seconds. The multi-stage campaigns that once required nation-state resources are now accessible to almost anyone. And every AI agent, every automated workflow an organization adopts to become more productive, quietly gifted adversaries a new attack surface at the same time.
I’ve been watching this unfold and thinking hard about how to respond to it. And I keep arriving at the same conclusion: the defense most organizations rely on today was built for a different threat. Not just an older one. A structurally different one.
When attacks move at machine speed, the organizations that thrive aren’t the ones with the most products. They’re the ones whose defense gets smarter every time it encounters a threat, and passes that intelligence to every other customer in the system.
The stack problem
For 40 years, the cybersecurity industry had a reliable playbook: every new threat category became a new product. New threat, new tool. New gap, new vendor. The result? The average enterprise today manages more than 45 separate security products.1
The problem with that number isn’t the cost and complexity, though that’s real too. It’s what happens to intelligence when it’s fragmented across 45 silos. The endpoint doesn’t know what the firewall saw. The email gateway doesn’t tell the identity layer what it caught. Every tool learns…
