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Patch Your HP LaserJet Printers

Serious security vulnerabilities affecting HP LaserJet Printers have been reported by reputable sources .  Researchers have shown that it is possible for an attacker to access documents containing sensitive information sent to the printer by replacing the printer's firmware. 

Affected HP printers are listed at

If you have a printer that is vulnerable, you should obtain the firmware patch as soon as possible by following the instructions at