What happened
On Sept 22, 2026 HackerOne announced it is integrating Anthropic's Claude Mythos across select H1 Platform products — H1 Code Security Audit (full-repo scanning for multi-year, multi-author vulnerabilities) and H1 Code (PR review) — to streamline discovery, validation, prioritization, and remediation, with products available soon after internal testing.
Why it matters
Extends frontier-model red-teaming into HackerOne's exposure-management lifecycle so defenders can close the widening gap (critical-bug backlog up 29x) created when AI accelerates discovery — and notably keeps customer/researcher data out of model training.
Applicability
Enterprises using HackerOne's CTEM/code-audit offerings should evaluate the Mythos-powered code scanning when it ships, particularly for appsec teams struggling with vuln validation/remediation backlogs.