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From the Schneier on Security blog
This is a fun story, detailing the hack a group of high school students perpetrated against an Illinois school district, hacking 500 screens across a bunch of schools.
During the process, the group broke into the school’s IT systems; repurposed software used to monitor students’ computers; discovered a new vulnerability (and reported it); wrote their own scripts; secretly tested their system at night; and managed to avoid detection in the school’s network. Many of the techniques were not sophisticated, but they were pretty much all illegal...