Anthropic’s browser agent got hijacked 31.5% of the time before safeguards engaged

VentureBeat
Jun 1, 2026, 11:50 am30 pts
Across the frontier labs, the highest prompt injection figures published this spring are Anthropic’s. Point a red-teamer at its newest model in a browser, and the attacker hijacked it 31.5% of the time before safeguards engaged. OpenAI, Google, and Meta never gave security leaders a comparable number to set…

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