Okay, got hold of an older backup and was able to restore two thirds of lost data.
@DavidR: even if I had it in another folder, that one would have been destroyed. And an Antivirus shouldnt destroy data thats not virus. Regarding backups: two instances of backups were destroyed by Avast! while killing the primary file.
![Angry >:(](https://forum.avast.com/Smileys/default/angry.gif)
The whole situation is extremely shit, and while part of the lost data is still in replied messages in the outbox, received files are gone.
![Angry >:(](https://forum.avast.com/Smileys/default/angry.gif)
Basically I can live with rare false positives that are reversible, and with the memory leak a few years back, and the annoying "unprotected"-bugs last year or so (even if these things shouldnt happen). But this time I have to ask how far I can trust Avast! at all. I mean, that was not just one mistake, but a ton of them. The acclaimed Message was not detected when creating backups, receiving mails, or in previous scans. Now all of the sudden there is a phishing Mail, that Avast! has to handle (but why?! its not virus, just phish, I know its bad but it requires user input). And it failes a basic action of moving a file from A to B 3 times in a row, destroying the original files and the underlying data on the disk in the process, so that its impossible to recover. This is a shitload of failed tasks, which makes me wonder if this software is reliable around sensitive data. So, yeah, Im gonna look if there is a better, more reliable AV.