@hion said in Threat Found in Opera Cache?:
@blackbird71 hmm. I've ran a full scan and everything seems fine. I still find it extremely odd that this happened.
I agree it seems odd, but on the other hand, if you visited an infected site or one carrying an infected ad server, I can see how Defender may have trapped the exploit as the browser was loading it into a cache folder and so it may have blocked any manual or other form of access to that file and folder until you took remedial action thru Defender... that is what an AV program is supposed to do.
With a clean full scan under your belt, the implication would be that the nasty was successfully trapped before it could do or install anything else. Whether it could have unilaterally done damage from a cache folder even if not blocked, I don't really know... but in any case, it seems as if you're good to go now.