BNP Paribas works with Mistral on a European answer to Anthropic's Mythos

BNP Paribas is working with Mistral AI to prepare for a category of AI cybersecurity tools already used by US peers but not reliably accessible to European supervisors. The bank is helping develop a cyber-focused model intended as a counterpart to Anthropic’s Mythos, a restricted-access system that identifies and exploits security vulnerabilities at machine speed. In testing, Mythos produced working exploits on its first attempt more than 83% of the time and often outperformed human red-teamers. Access is limited to about 40 to 50 organizations, mostly US tech firms and national-security partners, with no European bank included. The European Central Bank warns that defenders without comparable tools will be structurally behind if attackers obtain them. Mistral is positioning a sovereign European alternative as a response to stalled negotiations between European regulators and Anthropic.

"BNP Paribas is working with Mistral AI to prepare for a category of AI cybersecurity tools its US peers already use and its European supervisors cannot reliably get hold of, according to a Bloomberg report on Tuesday. The Paris-based bank, the eurozone's largest by assets, is one of several European institutions helping Mistral develop a cyber-focused model intended as a counterpart to Anthropic's Mythos."

"Mythos is the restricted-access AI system Anthropic launched earlier this year that can identify and exploit security vulnerabilities at machine speed; in controlled testing the model produced working exploits on its first attempt more than 83% of the time, often beating human red-teamers. Access has been deliberately rationed to roughly 40 to 50 organisations, mostly large US tech firms, US national-security partners and a handful of US banks including JPMorgan Chase. No European bank sits on the list."

"The European Central Bank has spent the past several weeks warning eurozone supervisors that Mythos-class tools change the threat picture for banks regardless of who has access. If attackers obtain a comparable model, the ECB's Frank Elderson told banks earlier this month, defenders without one will be structurally behind. The Bundesbank has formally backed Brussels in pressing Anthropic for access."

"That standoff is the gap Mistral is trying to fill. The French firm, already Europe's best-funded foundation-model company, has been pitching a sovereign European alternative since at least mid-May. BNP Paribas's involvement is the most concrete sign yet that the European banking sector is willing to put balance-sheet weight behind the project rather than wait for Brussels-Anthropic talks to unblock."

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