I have no clue how this could happened. No security alarm of any security SW.
Do you use snakeoil?
?? what is it?
I mean SW like firewall (on router, NAS, PC) - there was no alarms logs
and antivir with antispam ..
I think they were trying to say that firewalls and antivirus can help once in a while, you need to control access to your wallet by unplugging from the internet completely. It is kind of a hassle for sure, but so is losing coins.