CrowdStrike agrees to buy Fiddler AI and Dreadnode and launches an AI Kill Switch for rogue agents
Fiddler adds agent observability and Dreadnode automated AI security testing to Falcon; CrowdStrike did not disclose terms, which The Wall Street Journal reported at $495 million combined.
Why it matters
CrowdStrike is pitching AI safety as a security product: Falcon Guardian's new kill switch lets an administrator terminate an agent where it runs, block it from relaunching and cut its network access. Fiddler explains what an agent did and why, while Dreadnode tests models and agents for jailbreaks and prompt injection before deployment. The deals follow a wave of security firms buying AI-testing startups as enterprises roll out agents. Watch for closing, the final price and how the kill switch performs in practice.
Key facts
- Definitive agreements to acquire Fiddler AI and Dreadnode
- Announced November 3, 2026 at Fal.Con Europe, Barcelona
- AI Kill Switch available in Falcon Guardian
- Kill switch can terminate an agent, block relaunch and cut network access
- Terms not disclosed by CrowdStrike; WSJ reported $495 million combined