Thousands of VNC Instances Exposed to Internet Amid Rising Attacks


Cyberattacks targeting virtual network computing have increased, according to dark web intelligence company Cyble (VNC).

The Remote Frame Buffer (RFB) protocol is used by the VNC graphical desktop-sharing system to provide control of a remote machine via a network. Despite the fact that Cyble has discovered over 8,000 internet-accessible VNC instances with deactivated authentication, it has long been recognized that exposing VNC to the internet poses a security concern.

The default port for VNC, port 5900, has been the subject of an increase in attacks, according to Cyble, which also notes that the Netherlands, Russia, and Ukraine have emerged as the main assaulting nations. Water treatment plants, manufacturing companies, and research institutions are just a few of the organizations whose VNCs were revealed.

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