Select portions of Twitter’s source code appeared online as part of a major leak that the company suspects an insider orchestrated.

The code appeared on GitHub, an online platform through which software developers may collaborate, according to the New York Times. Twitter demanded the platform remove the post containing the code on Friday, which GitHub promptly did.

[It’s apparently been up on the site for a few months or more. It looks like retribution for Musk’s downsizing, but it apparently hasn’t harmed operations. Musk has talked about doing the need to revamp the entire code, so this may not be current code any longer anyway. — Ed]