these four dating apps and found they collected personal information, including everything from exact location data to sexual preference. some collecting users chat messages, and grindr collecting hiv status it s made me rethink using the app. reporter: the assistant attorney general for national security how long does that data live for? it could live forever. reporter: justice department officials tell nbc news they are men. it s owned by a kunlun tech, a chinese gaming company, sparking concern the data coulde gornmet do you have insight into how the chinese government can obtain data from say a chinese-owned app? what we know is that chinese law requires a chinese company to share any information that it has with the chinese government if it s asked.