Jamie Dimon Warns Mythos Exposes Banking Cyber Vulnerabilities

Jamie Dimon, CEO of JPMorgan Chase, said Anthropic’s new model Mythos has surfaced more software vulnerabilities after JPMorgan tested the `Mythos preview`. Dimon called AI a double-edged sword, saying “AI’s made it worse, it’s made it harder,” because models can both reveal new attack vectors and ultimately help defenders. He emphasized that banks invest heavily in cybersecurity and coordinate with government, but that risks extend to exchanges and the broader financial plumbing. For practitioners, the takeaway is immediate: treat LLMs as both a threat actor capability and an asset discovery tool, update threat models, expand red teaming, and harden patching and incident response pipelines.