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Anthropic's Claude Opus 4.8 blocks security code analysis

Users are reporting that Anthropic's Claude Opus 4.8 is now refusing to perform security-related tasks, such as analyzing code for Capture-the-Flag challenges. This behavior change appears to have been implemented in version 4.8, as earlier versions like 4.6 and 4.7 did not exhibit this restriction. The issue has been observed across different platforms, including Claude Code and GitHub Copilot. AI

IMPACT New restrictions in Claude Opus 4.8 may limit its utility for security research and development tasks.

RANK_REASON User reports indicate a change in product behavior regarding specific task types.

Read on r/Anthropic →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

COVERAGE [2]

  1. r/Anthropic TIER_1 English(EN) · /u/BatteryAtOnePercent ·

    Opus 4.8, no more security related tasks possible

    &#32; submitted by &#32; <a href="https://www.reddit.com/user/BatteryAtOnePercent"> /u/BatteryAtOnePercent </a> <br /> <span><a href="/r/ClaudeCode/comments/1ts3r24/opus_48_no_more_security_related_tasks_possible/">[link]</a></span> &#32; <span><a href="https://www.reddit.com/r/A…

  2. r/ClaudeAI TIER_2 English(EN) · /u/BatteryAtOnePercent ·

    Opus 4.8, no more security related tasks possible

    <!-- SC_OFF --><div class="md"><p>I develop CTF (Capture-the-Flag) challenges. With relatively basic stuff: encryption, obfuscation, anti-debugging, custom VM, and so on.<br /> As soon as Opus is supposed to analyze my code (not reverse engineering at this point), I immediately g…