Is a new privacy protocol helping malicious actors more than Internet users?

Hands typing on a keyboard surrounded by security icons.

Encrypted Client Hello (ECH) is a security protocol designed to increase user privacy by encrypting the content exchanged between clients and servers when they are establishing a connection. Increased user privacy — what’s not to like?

Unfortunately, in the view of many enterprise security professionals, the increased privacy promised by ECH could simultaneously reduce their ability to detect and respond to threats. Widespread adoption of the security protocol would severely curtail the ability of enterprises to identify and block connections to malicious domains.