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Cohere has completed the acquisition of Prague-based startup Aisle, forming the Cohere Cyber division

confirmed by 2 independent sources updated 1 h ago

Cohere has completed the acquisition of the cybersecurity startup Aisle, founded by Ondřej Vlček. A new division, Cohere Cyber, led by Vlček, is being formed, with Prague remaining an important hub. The preliminary agreement was announced in mid-October 2026.

Cohere has completed the acquisition of the Prague-based cybersecurity startup Aisle, which Vlček announced on LinkedIn. A new division, Cohere Cyber, is being formed, which will be led by Ondřej Vlček as senior vice president. Stanislav Fort is becoming vice president of AI security and will connect security research with the development of Cohere's foundation models together with CTO Ivan Zhang. Jaya Baloo holds the position of global Chief Information Security Officer (CISO), and according to one source, also Chief Information Officer (CIO) of the group.

Cohere and Aisle signed the acquisition agreement as a preliminary deal in mid-October 2026; the current announcement confirms its completion. The financial terms of the transaction were not disclosed. According to earlier information, most, or according to one source all, of Aisle's roughly 50 employees were to move to Cohere; current reports do not specify the exact number. Prague, where Aisle has its development center, is set to play an important role at Cohere as its European base.

Aisle, which Vlček founded in 2025 together with Fort and Baloo, develops AI tools for autonomous discovery of software vulnerabilities. Over the course of its existence, the company says it has uncovered more than 500 bugs in more than a hundred software projects, including 12 vulnerabilities in the OpenSSL library and 18 of 24 bugs in the cURL tool, some of which had persisted in the code for decades. The acquisition fits into Cohere's broader expansion in Europe, which in April 2026 also announced a merger with the German company Aleph Alpha valued at an estimated $20 billion.

What changed

Why it matters

The acquisition shows that major AI model providers are starting to integrate autonomous software vulnerability discovery directly into their product portfolios, moving this technology from the market's fringe into offerings for enterprise and public-sector customers. For Prague and the Czech tech ecosystem, it is a signal that local cybersecurity research can attract interest from global AI players.

What was added since the original report

Verified updates

  1. New verified information

    The acquisition has been completed (Vlček announced it on LinkedIn), not merely a preliminary agreement signed; The new division has a specific name, Cohere Cyber; Ondřej Vlček holds the position of senior vice president; Stanislav Fort is vice president of AI security at Cohere; Aisle has uncovered more than 500 security bugs over the course of its operation

    • The acquisition has been completed (Vlček announced it on LinkedIn), not merely a preliminary agreement signed
    • The new division has a specific name, Cohere Cyber
    • Ondřej Vlček holds the position of senior vice president
    • Stanislav Fort is vice president of AI security at Cohere
    • Aisle has uncovered more than 500 security bugs over the course of its operation
  2. New verified information

    After the transaction is completed, Ondřej Vlček is expected to lead the new Cohere security division.; All 50 employees of AISLE are expected to move to the new division.

    • After the transaction is completed, Ondřej Vlček is expected to lead the new Cohere security division.
    • All 50 employees of AISLE are expected to move to the new division.

Two audiences, two different impacts

What this means

01

For individuals

For developers and security specialists, this is further confirmation that AI tools for automatic vulnerability discovery (including findings in OpenSSL and cURL) are coming under the wing of large AI companies and becoming a standard part of their offering, not just experimental technology.

What to do Monitor the development of AI tools for finding software vulnerabilities as a complement to your own security practices.
More practical updates →
02

For a business

Companies using or considering Cohere products will gain access to the new Cohere Cyber division focused on detecting vulnerabilities and cyber threats using AI, which may influence the choice of security solution vendor for both businesses and public institutions.

Risks and compliance
What to decide Determine whether the new Cohere Cyber division offers services relevant to enterprise software security, and consider including it in vendor evaluations.
More business impacts →
AI safety Aisle Cohere Cohere Cyber cybernetics Prague

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Event sources

confirmed by 2 independent sources · 2 publishers, 2 independent. We count feeds from the same owner only once.

3
Lupa.cz independent context · first detected Ondřej Vlček znovu oficiálně ve světové kybernetické lize, startup Aisle bude kupovat kanadská firma E15.cz independent context Bývalý šéf Avastu Ondřej Vlček prodává svůj AI start-up. Kupuje ho kanadský technologický hráč Lupa.cz independent context Kanadský globální hráč dokončil akvizici českého startupu Aisle, Praha má ve firmě hrát důležitou roli