When they busted a large cheating ring here in Sweden for the national aptitude test the setup involved miniature receivers and transmitters, a central location

When they busted a large cheating ring here in Sweden for the national aptitude test the setup involved miniature receivers and transmitters, a central location giving information to all the test sites, and countermeasures to anti-cheat. The cheating was a multi-million operation and the several people involved got multiple years in prison. One could say that the quality of information is one qualifying difference, also the scale and effectiveness. They were less detectable, and also designed and tested to avoid detection in ways that note cards are not.