In the 24 hours after Twitter last week eliminated the blue check mark that historically served as a means of identifying public agencies, at least 11 new accounts began impersonating the Los Angeles Police Department.

More than 20 purported to be various agencies of the federal government. Someone pretending to be the mayor of New York City promised to create a Department of Traffic and Parking Enforcement and slash police funding by 70%.

Elon Musk’s decision to stop giving check marks to people and groups verified to be who they said they were, and instead offering them to anyone who paid for one, is the latest tumult at Twitter, the social media giant he has vowed to remake since he acquired it last year for $44 billion (¥5.8 trillion).