> anyone potentially affected

How does one know one is affected?

What's the point of rotating tokens if I'm not sure that I've been affected - the new tokens will just be ex-filtrated as well.

First step would be to identify infection, then clean up and then rotate tokens.

The article has some indicators of compromise, the main one locally would be .truffler-cache/ in the home directory. It’s more obvious for package maintainers with exposed credentials, who will have a wormed version of their own packages deployed.

From what I’ve read so far (and this definitely could change), it doesn’t install persistent malware, it relies on a postinstall script. So new tokens wouldn’t be automatically exfiltrated, but if you npm install any of an increasing number of packages then it will happen to you again.