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Europe must prevent misuse of Anthropic's Mythos, Bundesbank chief warns

Published by Global Banking & Finance Review

Posted on April 21, 2026

3 min read

· Last updated: April 21, 2026

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Europe must prevent misuse of Anthropic's Mythos, Bundesbank chief warns
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FRANKFURT, April 21 (Reuters) - Banking authorities must prevent the misuse of Anthropic's Mythos, its most advanced AI model to date, which opens the door to new and sophisticated cyber risks,

German central bank chief calls for wide access to Anthropic's Mythos

Bundesbank's Perspective on AI Model Mythos and Financial Sector Risks

By Balazs Koranyi

Concerns Over Access and Misuse of Mythos

FRANKFURT, April 21 (Reuters) - German central bank chief Joachim Nagel called on Tuesday for all institutions to have access to Anthropic's artificial intelligence model Mythos to keep the playing field even and to avoid it being misused. 

The Bundesbank head said banking authorities must act to prevent the misuse of Anthropic's most advanced AI model to date, as it opens the door to new and sophisticated cyber risks.

Potential Security Vulnerabilities

"Mythos is an AI model that appears capable of quickly identifying and exploiting security vulnerabilities in financial institutions' software," Nagel said in a speech. 

Mythos has sparked fears across the banking industry that it could be misused to exploit legacy IT system vulnerabilities.

Dual-Use Nature of Mythos

"This AI model seems to be a double-edged sword, since it could be used not only to improve digital security systems, but also to leverage their vulnerabilities for malicious purposes," Nagel said at an event in Rome.

Regulatory Scrutiny and Calls for Wider Access

The capabilities of Mythos to code ​at a high level have given it a ​potentially unprecedented ability to identify cybersecurity vulnerabilities, experts say, prompting greater scrutiny from regulators globally.

Anthropic has rolled out a preview of Mythos to a select number of companies and some organisations that build or maintain critical software infrastructure, prompting calls for wider access to the technology.

"All relevant institutions should have access to such technology to avoid competitive distortions," Nagel said.

Risks to Banking Sector and Broader Economy

Its advanced coding and autonomous capabilities could dramatically accelerate sophisticated cyberattacks, particularly in sectors such as banking that rely on complex, interconnected and often decades-old technology systems, experts have said.

While debuting Mythos, Anthropic said the model's ability to find software flaws at scale could, if misused, pose serious risks to economies, public safety and national security.

AI's Impact on Inflation and Market Competition

In broader comments on AI, Nagel challenged the notion it could help lower inflation, the core focus of central banks. 

He said AI increases investment demand, could raise incomes and push up electricity prices, all of which may increase inflationary pressures.

Moreover, the use of algorithms may facilitate the setting of prices above competitive levels, Nagel warned.

"There is evidence that AI algorithms are able to consistently learn to charge excessive prices, without communicating with one another," he said. 

"From a central banking perspective, this uncertainty calls for particular vigilance," Nagel added. 

(Reporting by Balazs Koranyi, Editing by Louise Heavens and Alexander Smith)

Key Takeaways

  • Mythos can autonomously discover and exploit zero‑day vulnerabilities across major systems, lower the technical barrier for cyberattacks (finance.yahoo.com).
  • Anthropic has restricted public release, offering Mythos only to vetted partners under controlled Project Glasswing (resultsense.com).
  • European regulators including the ECB are probing financial institutions’ readiness against Mythos‑driven threats, signaling coordinated oversight (objectwire.org)

References

Frequently Asked Questions

What concerns does the Bundesbank President have about Anthropic's Mythos AI?
The Bundesbank President is concerned that Mythos could identify and exploit software vulnerabilities in financial institutions, increasing cyber risks.
How could Anthropic's Mythos AI be misused in banking?
Mythos could be used to both improve digital security and to exploit vulnerabilities for malicious purposes within the financial sector.
What measures does the Bundesbank President suggest regarding Mythos?
Joachim Nagel suggests banking authorities must prevent misuse of Mythos and ensure all relevant institutions have access to such technology.
Why should all relevant institutions have access to the Mythos AI model?
To avoid competitive distortions in the banking sector, ensuring fair access to advanced technology.

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