https://www.zdnet.com/article/80000-printers-are-exposing-their-ipp-port-online/
By Catalin Cimpanu
Zero Day
ZDNet.com
June 23, 2020
For years, security researchers have warned that every device left exposed
online without being protected by a firewall is an attack surface.
Hackers can deploy exploits to forcibly take control over the device, or
they can just connect to the exposed port if no authentication is
required.
Devices hacked this way are often enslaved in malware botnets, or they
serve as initial footholds and backdoors into larger corporate networks
(Russian hackers already use this technique).
However, despite this being common knowledge among cyber-security and IT
experts, we still have a large number of devices that are left exposed
online unsecured.
[...]
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