Hacker Stackoverflowin Showed How Easy Unsecured Printers Can Be Hacked
150,000 network printers hacked with a warning message from jack stackoverflowin due to an open network port.
This freaked out some people who saw the receipts printing out of their point of sale systems (I would freak out too).
Security researchers have published printer vulnerabilities, so take a look and see if your printer is part of the botnet.
The printers that got the warning message had port 9100 exposed to the internet
“For the love of God, please close this port, skid.”