Who exactly is spying on thousands of Brit biz PCs?
Security researchers have found malware that communicates using an unknown protocol and is largely targeting UK businesses.
The mystery software nasty has infected thousands of machines at organisations in finance, education, telecoms and other sectors, we're told.
It initially phones home to its masters by establishing a HTTP connection to what appear to be a command-and-control server.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump