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Twitter Ramps Up Fight Against Abuse and Malicious Bots - Bloomberg

For the first time, Twitter is going to require confirmation of an email address or phone number to sign up for an account. The company, which promotes itself as a place for public conversation over news and events, has long been criticized for making it too easy for malicious actors to create multiple spam accounts. Twitter said it would work with experts to make sure the changes don’t harm users in high-risk environments where anonymity is important.