I tried to use AV- Essentials back with 6.2 but was told that it was not really usable on anything but the high-end systems. I thought I would try it again with 7.x and now it seems to not hang the machine, but updates take 30 hours to install. It is clear that synology does not take viruses very seriously with this and the recent announcements, so what do others do for AV protection?