No way to know for sure based on this. If you used any app that “works with” WhatsApp in any way, you could be affected.
Comment on NPM Package With 56K Downloads Caught Stealing WhatsApp Messages
iAmTheTot@sh.itjust.works 2 days ago
For a layman, how might one deduce if they were affected? I cannot really tell from the article if this was particularly widespread.
Deestan@lemmy.world 2 days ago
magic_lobster_party@fedia.io 2 days ago
If you haven’t logged in to your WhatsApp through any third party applications you should be fine.