In 2014, Snapchat was charged by the FTC for using ambiguity and concealment of facts as forms of deception to their consumers. They were ambiguous in informing their consumers that the photos and messages sent on the app would disappear after a set time. What they failed to mention was that there were ways for recipients to save photos without informing the sender. For example, with an Apple device there is a method that one can screenshot a photo without a notification being sent to the sender. There was also a feature that allowed users to connect the app to their phone numbers to find friends but these numbers were not verified which lead to photos and messages being sent to the wrong people. This lack of security allowed hackers to track down 4.6 million usernames and phone numbers. The case between Snapchat and the FTC was settled in an agreement to be truthful with their privacy promises to consumers and be monitored by a privacy program professional for the next 20 years. This caused the FTC to be more aware and strict in ensuring that companies market their apps honestly to consumers and held mobile app companies to higher standards.
https://www.ftc.gov/news-events/press-releases/2014/05/snapchat-settles-ftc-charges-promises-disappearing-messages-were