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How hard is it to hack the average DVR? Sadly, not hard at all

Ars Technica:

Johannes B. Ullrich, a researcher and chief technology officer for the SANS Internet Storm Center, wanted to know just how vulnerable these devices are to remote takeover, so he connected an older DVR to a cable modem Internet connection. What he saw next—a barrage of telnet connection attempts so dizzying it crashed his device—was depressing.

“The sad part is, that I didn’t have to wait long,” he wrote in a blog post published Monday. “The IP address is hit by telnet attempts pretty much every minute. Instead of having to wait for a long time to see an attack, my problem was that the DVR was often overwhelmed by the attacks, and the telnet server stopped responding. I had to reboot it every few minutes.”

The Internet of Things should, at this point, mostly be renamed the Internet of Threats.