Community warnings
Real attacks, caught and broken down.
Real security incidents from AI coding sessions — what happened, why it was dangerous, and how Guard stopped it. All sensitive data removed before publishing.
Redacted warnings
Real protection moments, scrubbed for safety before becoming public learning pages.
Codex was stopped before reading an env file
A redacted example of a local secret read attempt.
Why it was risky
Env files often hold API keys or service credentials.
What Guard did
HOL Guard paused the read before file contents left the machine.
Claude Code was stopped before calling an untrusted MCP tool
A redacted example of an MCP tool with a misleading description.
Why it was risky
The tool description asked the agent to read credentials and pass them as arguments.
What Guard did
HOL Guard paused the tool call and flagged the description for review.
Cursor was stopped before following a hidden instruction
A redacted example of a prompt injection via a file comment.
Why it was risky
The instruction was embedded in an HTML comment invisible to the developer.
What Guard did
HOL Guard paused the command and showed the source of the instruction.
OpenCode was stopped before running a malicious postinstall script
A redacted example of a supply-chain attack via npm install.
Why it was risky
Postinstall scripts run with full permissions before anyone reviews the code.
What Guard did
HOL Guard paused the install and showed the script contents.