CrowdStrike moves to buy Fiddler AI and Dreadnode in reported $495 million bet on AI agent security
CrowdStrike has signed agreements to acquire AI agent observability firm Fiddler AI and AI security testing startup Dreadnode, adding monitoring and pre-deployment testing to its Falcon platform alongside a new AI kill switch.
CrowdStrike has signed separate agreements to acquire two AI security startups, Fiddler AI and Dreadnode, in a move to extend its Falcon platform from protecting computers and networks to watching over the autonomous software agents that increasingly act on behalf of companies.
The company announced both agreements on Tuesday at Fal.Con Europe 2026 in Barcelona. Fiddler AI focuses on observability and explainability — monitoring what an AI agent does once it is running and explaining its behaviour — while Dreadnode specialises in automated security testing of AI models, applications and agents before they are deployed.
CrowdStrike itself did not disclose the purchase prices in its announcements. The Wall Street Journal reported that the two transactions are worth a combined $495 million, with Fiddler valued at about $400 million and Dreadnode at roughly $95 million, according to reporting carried by TechCrunch and SecurityWeek. Those figures are the newspaper’s reporting, not prices confirmed by CrowdStrike, and any account of the deal should keep that distinction clear.
The consideration is expected to be predominantly cash, with a portion in stock subject to vesting conditions. Neither acquisition has closed, and both remain subject to customary conditions, with CrowdStrike expecting each to close during the fourth quarter of its fiscal 2027, the quarter ending 31 January 2027.
Fiddler AI, founded in 2018 and based in Palo Alto, has raised roughly $99 million to $100 million, according to PitchBook figures cited in coverage of the deal. CrowdStrike plans to fold its technology into the Falcon platform as Falcon Observe, with general availability planned for the fourth quarter of fiscal 2027, subject to the transaction closing and integration.
Dreadnode, founded in 2023, is the younger and smaller of the pair, having raised $14 million in a Series A round in early 2025. It automates security testing that hunts for flaws in models and agents before they ship, including jailbreaks and prompt injection, running more than 100 attack strategies in its testing. Its offering would plug into Falcon Guardian, CrowdStrike’s existing AI agent security product, feeding test results in as security policy recommendations, and its engineers are expected to join CrowdStrike’s Cyber Superintelligence Lab.
Alongside the acquisitions, CrowdStrike announced an AI Kill Switch for Falcon Guardian, intended to let administrators stop risky agents, remove network access and prevent relaunch under human supervision. The idea is to give companies an emergency brake for software that can take actions across corporate systems — booking, messaging, moving data or changing settings — rather than merely answering questions in a chat window.
The timing reflects a wider shift in how companies use AI. As organisations move from chatbots to agents that can act across connected tools, the risks change too: an agent can be tricked, can misunderstand its instructions, or can behave in ways its owners did not intend, and the damage can spread faster than a human supervisor can intervene. CrowdStrike’s pitch is to cover the whole lifecycle — test the agent before launch, watch it while it runs, and stop it if it goes wrong.
The reported $495 million price tag would make the pair CrowdStrike’s third priced acquisition push of 2026, after SGNL at $740 million and Seraphic at a reported $420 million, both unveiled in January, according to analysis of the deals. At about $400 million, Fiddler would be valued at roughly four times the capital it had raised; Dreadnode, at about $95 million, at roughly seven times its Series A funding — multiples that show how highly investors and acquirers are currently valuing proven AI security teams.
What happens next depends on closing, integration and delivery. The products are due to reach general availability in the quarter ending January 2027, when filings should also reveal more about what CrowdStrike actually paid. Until then, the deal is best read as a statement of intent: that the next battleground in cybersecurity is not just keeping intruders out of networks, but keeping the AI agents companies now employ from becoming a risk themselves.
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