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Weekly Brief: The EchoLeak Vulnerability and Agentic Risk

The AI security landscape is shifting rapidly. This week, we saw the full impact of the EchoLeak vulnerability.

What is EchoLeak?

Section titled “What is EchoLeak?”

EchoLeak is a zero-click vulnerability that exploits how AI assistants read emails. By hiding instructions in the “invisible” layers of an HTML email, attackers can steal data without the user ever knowing.

How to Protect Your Team

Section titled “How to Protect Your Team”
  1. Sanitize AI Inputs: Ensure your AI is not reading raw, untrusted data.
  2. Monitor API Activity: Look for spikes in outbound traffic from your AI agents.