Cohere to Buy AISLE in AI Cybersecurity Deal

Canadian AI lab Cohere has signed a letter of intent to acquire AISLE, a San Francisco-based cybersecurity startup that uses artificial intelligence to detect vulnerabilities in software, Reuters reported on October 15. The Cohere to Buy AISLE agreement would add a dedicated cybersecurity arm to the business entity Cohere is assembling, positioning the combined group to offer security and threat-detection products to enterprise and public sector clients.

Cohere framed the planned acquisition as part of its continued investment in Europe. The Cohere to Buy AISLE acquisition would extend the company's European footprint through AISLE's engineering hub in Prague, according to Reuters. Cohere said the deal reflects its aim to deepen its presence across the region and strengthen European AI. The companies intend to offer security and threat-detection capabilities with private deployment available on the customer's own systems.

In a statement, Cohere argued that increasingly capable AI systems are transforming both cybersecurity and the threats organizations face, and that defensive capabilities must advance just as quickly. The comment, paraphrased from the company's announcement, captures the central logic of the deal: as AI systems grow more powerful, the tools used to attack software improve too, and the defenders need models that can keep pace.

The Cohere to Buy AISLE deal inside a $20 billion European AI merger

The AISLE acquisition would plug cybersecurity into the larger business Cohere is building through its merger with Germany's Aleph Alpha, a combination reported to be worth about $20 billion, according to Reuters. That merger has been assembling one of Europe's largest AI entities, and the AISLE deal suggests the group intends to compete not only on language models but on the trust and safety infrastructure enterprises require before deploying AI at scale.

Cohere has been well capitalized heading into this consolidation. In August, the company raised $500 million through a funding round that included AMD Ventures, Nvidia and Salesforce's venture capital arm, a round that valued Cohere at $6.8 billion, according to Seeking Alpha reporting carried by TradingView. It also arrives during an AI infrastructure boom, as cloud platforms raise record rounds to meet surging demand for AI compute. Terms of the Cohere to Buy AISLE transaction have not been disclosed, and a definitive agreement has not yet been signed.

The European angle matters strategically. Sovereign AI has become a policy priority across the continent, with governments eager for regional champions that can serve public-sector customers under European jurisdiction. A Prague hub, staffed by engineers from a startup that has already found hundreds of vulnerabilities in widely used open-source software, fits that playbook neatly.

The team behind the Cohere to Buy AISLE agreement

AISLE was founded in 2025 by Ondrej Vlcek, the former CEO of Czech antivirus maker Avast, alongside co-founders from Google DeepMind and Anthropic, according to Reuters. The pedigree is notable: Vlcek ran one of the world's largest consumer security companies, while the DeepMind and Anthropic alumni bring frontier-model expertise to the classic problem of finding software bugs before attackers do.

The company's track record in its first year is striking. AISLE said its AI found more than 500 new bugs in widely used software, including 12 vulnerabilities in OpenSSL, the widely deployed encryption library that secures internet traffic for banks, governments and messaging apps, and the flaws were fixed after their discovery, according to Reuters. More detail on the haul emerged in additional coverage: BigGo Finance reported that AISLE discovered more than 500 previously unknown vulnerabilities with assigned CVE identifiers across more than 100 codebases, that every one of the 12 vulnerabilities patched in the January security update for OpenSSL was found by AISLE, and that 18 of the 24 CVEs fixed in the latest release of the curl data-transfer tool were also attributed to the company. Cohere stated that these findings were independently verified by the respective software developers.

The acquisition would bring AISLE's leadership directly into Cohere's security organization. According to AISLE's blog, as reported by BigGo Finance, Vlcek would become senior vice president of a new "Cohere Cyber" division offering customer-facing security products upon completion of the transaction. Co-founder Jaya Baloo would serve as global chief information security officer, while Stanislav Fort, AISLE's chief technology officer and chief scientist, would become vice president of AI security. AI Weekly reported that the deal would fold AISLE's Prague team into the new Cohere Cyber unit, making the office Cohere's hub in the Czech capital. Under the Cohere to Buy AISLE terms, the Prague engineering hub would anchor the new division's European operations.

Why the Cohere to Buy AISLE deal matters for AI security

The Cohere to Buy AISLE agreement lands in a year when the relationship between AI and cybersecurity has grown sharply adversarial. Agentic systems now write code, browse the web and operate tools autonomously — and startups are already deploying AI agents to probe enterprise defenses — which expands the attack surface for enterprises and simultaneously creates a new class of defenders that can audit code at machine speed. Labs that can demonstrate credible security capabilities have an advantage when selling to regulated industries and governments.

For Cohere, the Cohere to Buy AISLE move buys enterprise credibility as much as it buys technology. The company is positioning itself as the enterprise-grade alternative in a market dominated by American labs, and that pitch only works if its systems can be shown to be secure. AISLE's team condensed years of vulnerability-research expertise into a single year of results against some of the most scrutinized software projects in existence.

Whether the letter of intent becomes a completed deal will depend on negotiations over price and structure, neither of which has been disclosed. But the direction of travel is clear: the AI companies that win enterprise trust in the next phase of adoption will be the ones that can promise not just capability, but security. With the Cohere to Buy AISLE deal, Cohere is betting that owning the tools that find the bugs is the fastest way to make that promise.