Frontier-model discovery
The same Mythos-class model Anthropic uses for its own open-source vulnerability research, applied to your code.
Assessment engagement
Claude Mythos Security Scan
The AI behind thousands of disclosed open-source vulnerabilities, pointed at your code. A human proves every finding.
Claude MythosOWASP Top 10CWE Top 25OWASP ASVS
Scope an assessmentFit check
This is a fit if
- 01You need a defensible picture of your current exposure.
- 02A renewal, launch, or customer security review is approaching.
- 03Leadership needs priorities before approving security spend.
The work, made tangible
What you receive
Claude Mythos is the AI model Anthropic built for security research, and its record is public. Pointed at open-source software, it has found memory-corruption, authentication, and remote-code-execution flaws in code that had been reviewed by humans for decades, including a FreeBSD NFS remote code execution bug (CVE-2026-4747) it identified and exploited autonomously. Traditional static analysis matches patterns; Mythos reads code the way an experienced reviewer does, across files and data flows, and it covers your whole repository instead of a sample. We run your scan through Claude Security, Anthropic's code-scanning product, which runs on Claude Mythos. Raw model output is not a report, though: every candidate finding is triaged, reproduced, and severity-rated by a CompTIA PenTest+ certified tester before it reaches you, so you get confirmed vulnerabilities with proof and a suggested patch, not a pile of maybes. Your source code is handled under NDA and deleted at the end of the engagement.
Track record
6,157 vulnerabilities disclosed to maintainers
591 open-source projects affected
219 CVE records assigned
365 GitHub Security Advisories assigned
Source: Anthropic coordinated vulnerability disclosure dashboard, as of October 2, 2026. Claude and Claude Mythos are trademarks of Anthropic. Cyber Falcon is an independent security provider and is not affiliated with or endorsed by Anthropic.
Whole-repository coverage
Every file and dependency path analyzed, not a sampled subset or a single entry point.
Context-aware findings
Cross-file data flows, missing authorization checks, and logic bugs that pattern-matching scanners miss.
Human-verified results
No raw AI output. Each finding is reproduced by a certified tester before it is reported.
Patch-ready remediation
Suggested fixes written against your code, so remediation starts the day the report lands.
Release-cycle option
Scan on every major release as a retainer, so new code gets the same scrutiny as the old.
Delivered by CompTIA-certified practitioners: CompTIA PenTest+ ce.
Engagement walkthrough
How the work moves
- 01Scoping & authorization
Repositories, branches, and languages in scope, plus written confirmation that you own or are authorized to test the code.
- 02Claude Mythos discovery
Your full codebase is analyzed for memory-safety, injection, authorization, cryptographic, and business-logic flaws.
- 03Human validation
Every candidate is reproduced and rated against your real deployment. False positives are cut before you ever see them.
- 04Fixes & report
Confirmed findings with proof-of-concept, CWE mapping, and a suggested patch your developers can review and merge.
- 05Retest
After you patch, we re-scan and re-verify so you know the hole is actually closed.
Before we start
Common questions
Where does Claude Mythos Security Scan start?
With a short scoping call. We identify the business question, the systems involved, and the evidence already available before recommending work.
What will we receive?
A clear walkthrough of the work completed, the evidence found, and the next actions. The scope includes frontier-model discovery, whole-repository coverage, context-aware findings.
Can this be sized for a small business?
Yes. Scope follows your environment, risk, and deadline. The first conversation is designed to find the smallest useful starting point.