Hackers used a modified man-in-the-middle attack to tamper with IP video surveillance feeds and eavesdrop on IP video phone conversations. Only about one in 20 organizations secures its IP video with encryption or other measures. An attacker needs physical access to the IP network to execute these hacks, the researchers say. The researchers used a pair of homegrown tools to perform the hacks at Defcon: UCSniff tool, which performs video eavesdropping, and VideoJak, which intercepts and replays video.”]
Source: https://www.darkreading.com/attacks-breaches/the-9-coolest-hacks-of-2009