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Posted by _chall 1 day ago

Backdoor in Claude Code for VS Code extension on the Cursor Marketplace(phorion.io)
https://cursor.com/blog/claude-code-extension-security-notic...
930 points | 537 commentspage 7
kirth_gersen 1 day ago|
This is why when I use AI, I still download from the browser and drag and drop the outputted files like a caveman. Sure, it's slower, but it keeps my mental model more up to date and has less security risks. I can even...like read the thing before I run it rather than giving a LLM access to my shell directly. Also anecdotally, it seems more token efficient for those who care about that.
gruez 1 day ago|
That's not the actual hack though, it's with an extension. You could have gotten compromised this way through an extension for git or whatever.
rolosa 1 day ago||
He says to follow his social, and he provides his handle, but there's no link, and I have no idea how to read it.
episodeiv 1 day ago||
You can see his posts at https://cyberplace.social/@GossiTheDog/
rolosa 1 day ago||
Eh, he's already lost me the moment he made it difficult.
fn-mote 1 day ago||
If you don’t have anything to steal, you don’t need to follow a security researcher anyway.

/s

rolosa 20 hours ago||
Why should I go out of my way to figure out how to read his twitter?
blinded 14 hours ago||
You guys open your editors?

This is a joke (neovim user here).

jehnnysmith 21 hours ago||
Just uninstalled all the vscode extensions. Dont need any of them anymore.
shahbaby 1 day ago||
I think right now AI is helping the attackers more than it's helping the defenders.

That part is probably obvious.

But in the long term, I suspect this will get worse.

Attackers will still need to think critically to be a few steps ahead of the defenders.

But the defenders will increasingly outsource their thinking to AI as they are incentived if not outright forced to dumb themselves down into interchangeable cogs.

mindracer 1 day ago||
The extension has over 27 million installs, ouch
madarao 19 hours ago||
Let me guess, they vibe coded their vibe coding extension?
gpm 19 hours ago|
No.

Well probably yes but not at all relevant here... the problem wasn't the legitimate extension, it was cursor serving a fake malware one.

Handy-Man 1 day ago||
That's not official extension though? Misleading title
blondie9x 1 day ago|
From https://doublepulsar.com/anthropic-hacked-to-deliver-remote-...

Notable customers who run Claude Code and Cursor on laptops include Binance, amongst thousands of others.

Did the Claude Code plugin hack cause the Binance theft? The timing seems like an incredible coincidence.

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