JA3 fingerprinting
AssessTechniques
A TLS client fingerprinting method used to identify software signatures behind traffic.
Why it's here
Placed in Assess: 1 article(s) of evidence from 1 source(s), led by security coverage, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 7Cloudflare Blog·6/8/2026securityCloudflare adds live threat intelligence to WAF rules
Cloudflare is exposing live threat intelligence signals from Threat Events directly to its WAF so security teams can create proactive blocking rules. The new fields let rules match on attacker names, target industries or countries, attack type, and data source, with initial support for IP-based matching and future plans for JA3 and domain-based detection.