OWASPASVS 5.0 requirement

ASVS-V12.1.5 Encrypted client hello (ech) is enabled in the application's tls settings to prevent exposure of sensitive metadata, such as the server…

L3 Published 2025 Official page ↗
Standard
OWASP ASVS 5.0
Chapter
V12 Secure Communication
Section
V12.1 General TLS Security Guidance
Level
L3 (requirement applies from this verification level up)

Requirement

Verify that Encrypted Client Hello (ECH) is enabled in the application's TLS settings to prevent exposure of sensitive metadata, such as the Server Name Indication (SNI), during TLS handshake processes.