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by John W. Simek, Vice President of Sensei Enterprises, Inc.

HP OfficeJet Compromised by Malicious Fax

August 13, 2018

I've never been a big fan of inkjet printers. A recent demonstration at DEF CON cements that opinion. Threatpost reported that researchers at Check Point released public details on two critical vulnerabilities found in HP's implementation of a widely used fax protocol used in all its OfficeJet all-in-one inkjet printers. "We are able to take complete control over the printer just by sending a malicious fax," said Yaniv Balmas, malware research team lead with Check Point. "There is no prerequisite for this attack. All you need to do is send a malicious fax to the printer and you have control." The good news is that HP has released updates to patch the vulnerability. If you own an impacted OfficeJet printer, make sure you apply the patches. Also, consider upgrading to a laser printer.

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