The mobile messaging firm Snapchat has agreed to settle charges it misled users and secretly collected their data. Snapchat lets users send photos, videos and messages that disappear within seconds. Despite the company’s claims the messages “disappear forever,” the Federal Trade Commission says the messages remained accessible to users and outside parties. The FTC also said Snapchat collected users’ location and contacts, despite claims it was not doing so, and failed to secure user data, enabling hackers to gather millions of user phone numbers in a recent breach. The deal with the FTC requires Snapchat to make changes, but it will not face a fine.