Massive Networks of Fake Accounts Found on Twitter

http://www.bbc.com/news/technology-38724082

Massive collections of fake accounts are lying dormant on Twitter, suggests research.
The largest network ties together more than 350,000 accounts and further work suggests others may be even bigger.
UK researchers accidentally uncovered the lurking networks while probing Twitter to see how people use it.
Some of the accounts have been used to fake follower numbers, send spam and boost interest in trending topics.