On September 10, 2018, Twitter detected a bug in the Account Activity API (AAAPI) sending a copy of a private message to a random recipient. The company officially stated that the error affected less than 1% of users. The developers fixed the problem within a few hours of detection. Currently Twitter sends notification to potential victims and works to neutralize possible damage.
The Account Activity API is designed to communicate with developers on the Twitter platform. Using this interface, contractors can send private messages to each other. The detected error led to the fact that, at the confluence of certain circumstances, information and tweets of clients came to third-party destinations. A bug in the interface existed in May 2017 and could affect any interactions over the past 16 months.
Twitter states that only officially registered developers could receive random messages. Currently, there is correspondence with possible recipients. Representatives of the company promise to monitor the developers' compliance with their obligations and make sure that the information received is illegally received.
Problems of information leakage due to developer errors or hacker attacks regularly pop up in the IT field. In early September, 2018, Family Orbit, a company specializing in the hidden control of user actions, allowed a leakage of 281 gigabytes of data obtained during the surveillance process.