How Anthropic’s leaked AI model wiped out $14.5B from cybersecurity stocks in one day

2026-03-28 - 10:39

Cybersecurity stocks experienced a significant plunge after a report revealed Anthropic's new AI model, codenamed Claude Capybara, could pose unprecedented cybersecurity risks. The model's potential to bypass existing defenses led to an estimated $14.5 billion wipeout in cybersecurity stocks, rattling investors despite some analysts urging calm.