Our estimates suggest that between 9 percent and 15 percent of active Twitter accounts are bots, they said.
Some emulate human behavior to manufacture fake grassroots political support … [and] promote terrorist propaganda and recruitment.
Twitter now has many other ways to account for violations, including impersonation accounts and spam.
Also, several services occur which claim to be able to audit followers and categorize fake accounts.
source: www.techworm.net
