Claude Security Launched: How to Automatically Find and Fix Code Vulnerabilities

On April 30, 2026, Anthropic officially launched Claude Security in public beta for all Claude Enterprise customers globally. This is not a minor update — it is a dedicated defensive product that fundamentally changes how security teams handle vulnerability management.

Powered by Claude Opus 4.7, Claude Security scans entire GitHub repositories (or targeted directories), traces data flows across files, and identifies complex, multi-component vulnerabilities that traditional rule-based scanners have never been able to catch. It then runs an adversarial self-verification pass — challenging its own findings to minimize false positives — before surfacing results to an analyst with a confidence rating, severity level, and a ready-to-apply code patch.

Since its research preview launch in February 2026 (then called Claude Code Security), hundreds of organizations have used it to uncover vulnerabilities in production codebases that had gone undetected for years, including bugs missed by tools like Snyk and SonarQube.

Key partners now integrating Opus 4.7 into their security platforms include CrowdStrike, Palo Alto Networks, SentinelOne, Wiz, Accenture, Deloitte, and PwC.

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    What Is Claude Security and Why It Matters Now

    Claude Security launched in public beta on April 30, 2026 for all Claude Enterprise customers globally. It was previously known as Claude Code Security during its closed research preview in February 2026. Powered by Claude Opus 4.7 — currently one of the strongest generally available models for security analysis — it is Anthropics direct answer to a growing crisis: AI is compressing the time between vulnerability discovery and exploitation, meaning attackers are moving faster than ever. Hundreds of organizations already used the closed preview to find and fix real vulnerabilities in production code, including bugs that had existed undetected for years despite expert review.

    How It Works: AI That Thinks Like a Security Researcher

    Traditional security tools like Snyk or SonarQube work by matching code against a library of known vulnerability patterns. They are fast, but they are blind to anything they have not seen before. Claude Security works differently: it reads your entire codebase the way a human researcher would — understanding how components interact across files, tracing how data flows through your application end-to-end, and identifying complex multi-component vulnerabilities that no rule-based tool can detect. After finding a potential issue, it runs an adversarial self-verification pass, actively challenging its own results before surfacing anything to an analyst. This dramatically reduces false positives and attaches a confidence rating to every finding, alongside severity level (High, Medium, Low), likely impact, reproduction steps, and a ready-to-apply code patch.

    How to Access and Use Claude Security Today

    Claude Security is accessible directly from the Claude.ai sidebar or at claude.ai/security. Admins enable it from the admin console. From there: connect your GitHub repository, choose to scan the full repo or scope it to a specific directory or branch, and start the scan. Claude will reason through your code autonomously — no custom API setup or agent-building required. Once complete, findings are organized by severity (High, Medium, Low). You can dismiss findings with documented reasons that future reviewers will see, export results as CSV or Markdown for your audit systems, and push scan events to Slack, Jira, or other tools via webhooks in real time. To apply a fix, simply open a Claude Code session directly from the finding — no back-and-forth between security and engineering teams that used to take days.

    The Bigger Picture: Claude Mythos, Project Glasswing, and Whats Coming

    Claude Security runs on Opus 4.7, but Anthropic has a more powerful — and more restricted — model called Claude Mythos, available only to select partners through Project Glasswing. Mythos can match or surpass elite human experts at both finding and exploiting vulnerabilities, which is exactly why it is not publicly available. Claude Security is Anthropic's answer for the wider enterprise market: accessible, safeguarded, and already effective. Technology partners embedding Opus 4.7 into their platforms include CrowdStrike, Palo Alto Networks, SentinelOne, Wiz, and TrendAI. Services partners helping enterprises deploy it include Accenture, BCG, Deloitte, Infosys, and PwC. Access for Claude Team and Max plan users is coming soon, though Anthropic gave no confirmed date. The bottom line: AI is going to scan most of the world's code for vulnerabilities in the near future. The question is whether that scanning is done by defenders or attackers first.

    Prompt

    # No prompt needed for this guide.
# Claude Security is accessed directly from the Claude.ai sidebar or at:
# https://claude.ai/security
#
# Workflow:
# 1. Connect your GitHub repository
# 2. Select full repo or target a specific directory/branch
# 3. Start a scan — Claude reasons through code like a security researcher
# 4. Review findings (High / Medium / Low severity with confidence ratings)
# 5. Open Claude Code to apply the suggested patch directly in context
# 6. Export results as CSV or Markdown, or push to Slack/Jira via webhooks