Four Democratic US senators today asked the Federal Trade Commission to “investigate Apple and Google for engaging in unfair and deceptive practices by enabling the collection and sale of hundreds of millions of mobile phone users’ personal data.”

“The FTC should investigate Apple and Google’s role in transforming online advertising into an intense system of surveillance that incentivizes and facilitates the unrestrained collection and constant sale of Americans’ personal data,” they wrote. “These companies have failed to inform consumers of the privacy and security dangers involved in using those products. It is beyond time to bring an end to the privacy harms forced on consumers by these companies.”