Twitter Braces for FTC Fine of $150 Million to $250 Million

The commission is investigating the social network’s use of phone numbers for ad targeting

Twitter detailed in its Form 10-Q that it received a draft complaint from the FTC July 28 P_Wei/iStock

Twitter revealed in a Form 10-Q filing with the Securities and Exchange Commission Monday that the Federal Trade Commission is investigating the company over its use of phone numbers for ad targeting, which came to light last October. David Cohen is editor of Adweek's Social Pro Daily.