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Claude Code embeds hidden system prompt markers, investigation finds

By PulseAugur Editorial · [3 sources] ·

An investigation into Claude Code has revealed that the application embeds hidden system prompt markers. These markers are based on the API base URL and timezone, and were discovered by Steven Saus during a privacy inspection. The findings suggest a method of steganographically marking requests made through the Claude Code interface. AI

IMPACT This finding raises questions about data privacy and request tracking within AI applications.

RANK_REASON The cluster consists of social media posts discussing a privacy investigation into a specific application, rather than a primary release or significant industry event.

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 3 sources. How we write summaries →

Claude Code embeds hidden system prompt markers, investigation finds

COVERAGE [3]

  1. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    Claude Code Is Steganographically Marking Requests I inspected Claude Code for privacy reasons and found hidden system prompt markers based on API base URL and

    Claude Code Is Steganographically Marking Requests I inspected Claude Code for privacy reasons and found hidden system prompt markers based on API base URL and timezone. https://thereallo.dev/blog/claude-code-prompt-steganography#security #reverse-engineering #ai #privacy

    LINKS thereallo.dev/…/claude-code-prompt-stegan…
  2. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Claude Code Is Steganographically Marking Requests I inspected Claude Code for privacy reasons and found hidden system prompt markers based on API base URL and

    Claude Code Is Steganographically Marking Requests I inspected Claude Code for privacy reasons and found hidden system prompt markers based on API base URL and timezone. # security # reverse -engineering # ai # privacy https:// thereallo.dev/blog/claude-code -prompt-steganography

    LINKS thereallo.dev/…/claude-code-prompt-stegan…
  3. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Claude Code Is Steganographically Marking Requests I inspected Claude Code for privacy reasons and found hidden system prompt markers based on API base URL and

    Claude Code Is Steganographically Marking Requests I inspected Claude Code for privacy reasons and found hidden system prompt markers based on API base URL and timezone. https://thereallo.dev/blog/claude-code-prompt-steganography#security #reverse-engineering #ai #privacy

    LINKS thereallo.dev/…/claude-code-prompt-stegan…

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