Mythos risk prompts Japan banks to brace for cyberattacks 'this fall'

Lenders' AI investments have focused on efficiency, not defense

AI tools such as Anthropic's Mythos may be able to expose major weaknesses in banks' digital architecture. (Photo by Suzu Takahashi)

TOKYO -- The emergence of Anthropic's Claude Mythos artificial intelligence tool is confronting top Japanese banks with new risks to digital investment strategies that had focused on increasing efficiency and revenue.