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Dev tools · November 4, 2026

Cassandra – free tool to check if you got affected by the Cursor hack

One read-only command checks the 19 places Cursor's notice lists for the Claude Code 2.1.312 and 2.1.313 backdoor. Nothing is sent. The whole script is on the page.

Cassandra – free tool to check if you got affected by the Cursor hack launched on November 4, 2026 with 3 votes, #158 of 673 launches that month and more than 50% of that year's launches.

Visit ciphero.ai ↗Alternativestop 23% of November 2026

What it does

One command. Read-only, no sudo, nothing sent. Yes, it is a script that looks for a script, so the whole thing is on this page . Read it, then run it. Prefer not to pipe? curl -fsSL -o cassandra.sh https://ciphero.ai/cassandra.sh && less cassandra.sh && bash cassandra.sh Cursor's check is one grep: svc-telemetry in authorized_keys , and "machine not impacted" when it is absent. That settles whether the key is there now. It leaves three things open, and they are what the script was written for. Also, per editor (Cursor, VS Code, VS Code Insiders, Windsurf, VSCodium, Kiro and Trae): installed extension ids and versions, the install log for a bad version an update already replaced, and the…from ciphero.ai

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