CrowdStrike announced Monday it has signed agreements to acquire two artificial intelligence security companies, Fiddler AI and Dreadnode, in deals announced at its Fal.Con Europe conference in Barcelona.
CrowdStrike did not disclose what it paid for the companies. A report in the Wall Street Journal listed the price for Fiddler at $400 million, and Dreadnode at $95 million.
Fiddler, which specializes in AI agent observability and explainability, will become Falcon Observe on the company’s Falcon platform. Dreadnode builds automated security testing for AI systems, checking models and agents for weaknesses before deployment.
The acquisitions address a gap that has widened as companies adopt AI agents: the software can hold valid credentials and approved tools yet still make bad decisions, ignore instructions or claim work it never completed. Traditional security testing, built for code that behaves predictably, does not reach the model layer or the agent’s reasoning process.
Fiddler’s technology works after deployment. It evaluates agents before they reach production, traces decisions and reasoning across agent systems, flags drifting behavior and made-up answers, and creates records that can be used in audits. It works with common agent frameworks including LangGraph, Amazon Bedrock and Google ADK.
“When a regulator or your board asks what an agent did, saying ‘the model did it’ is not an answer,” said George Kurtz, CrowdStrike’s chief executive and founder, describing Fiddler as “the flight recorder for every agent.”
Dreadnode works earlier in the process. Its platform runs more than 100 known attack methods, including jailbreaks and prompt injection, against models and agent systems. It ranks problems by severity and maps them to widely used security standards, such as the OWASP Top 10 for large language models and the NIST AI Risk Management Framework. Dreadnode Chief Executive Brad Palm said his company was built on the idea that “the people best equipped to find those failures think like attackers.”
The announcements come alongside new Falcon Guardian capabilities that protect agents while they run. In a separate announcement, Kurtz introduced what the company calls the AI Kill Switch, a control that lets humans stop any AI agent. Writing on X, Kurtz said the switch “lives outside the model, at runtime, where an agent can’t argue with it, rewrite it, or wait it out.” He argued that the ability to stop an agent is what allows companies to run them faster: “The more certain a company is that it can stop any agent, the more agents it can put to work.”
Kurtz framed the shift as a move from security to safety. “For decades, security meant keeping the adversary out,” he wrote. “Safety is the bigger opportunity: letting AI run at full speed, inside the business, with a human in control.”
Both products are expected to be generally available in CrowdStrike’s fourth quarter of fiscal 2027. Both deals are expected to be paid mostly in cash, with part of the payment made in company stock that will be given out over time as conditions are met. They are expected to close in that quarter, pending standard approval steps.
Source: CyberScoop · 2026-11-03