Can chrome addons do that? I have couple of virus protectors and all but didnt know that could happen , scary to think someone made over 200k from one virus.
There was a legal chrome extension that updated one night automatically was updated by the developer and changed all the deposits address of the exchanges for the attacker address. When you send the coins to the "exchange" the coins were being send to the hacker... This extendion was deleted from the chrome store.
The extension I believe it was a bitcoin price ticker for chrome.