Ransomware claims to lock Windows licence
For those who because of family relationships are called upon to diagnose Windows problems ......
In what appears to be a lucrative scam, after infecting a system, ransomware blocks users from accessing their system and demands payment of a ransom to restore access. A recent variation on this theme claims to lock the Windows licence. The licence can be restored (re-activated) by calling a supposedly free service number.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump