Researchers at Columbia University claim to have discovered a security vulnerability in tens of millions of HP LaserJet printers. The vulnerability could allow a remote hacker to install malicious firmware on the printers. A compromised PC could tell a hacked printer to continually heat up a component, eventually causing paper to turn brown and smoke. The researchers believe other printers might be used as fire starters, giving computer hackers a dangerous new tool that could allow simple computer code to wreak real-world havoc.”]
Source: https://grahamcluley.com/hp-laserjet-printers-at-risk-of-fiery-hacker-attack/