Matthew Green questions whether sandboxing can rein in runaway AI agents

On October 1, 2026, cryptographer Matthew Green published an article titled "Is sandboxing sufficient to contain rogue agents?", exploring whether sandboxing mechanisms are enough to constrain runaway AI agents. Simon Willison subsequently cited the piece, noting that "both halves of the agent worm are now available"—meaning the conditions required for an agentic threat with both self-propagation capability and malicious behavior are already in place. In the article, Green questioned whether sandbox technology alone can effectively contain such rogue agents, arguing that sandboxes may be insufficient to counter the risk of worm-like agent spread. Willison's citation drew attention to the viewpoint within the AI safety community, becoming part of the discussion on the boundaries of agent security protection.

AI overview of reporting · Updated 9 days ago