American hackers maliciously sell data

American hackers maliciously sell data. Nowadays, many Internet companies accumulate user data themselves and purchase data from the market. Then they invest too little in security and their own technology is too poor. All of them are dragged away by hackers. They are also one of the main culprits. Data was copied back and forth, user privacy was sold as cabbage, and information was mixed back and forth. In the end, the database of a company that used the data was hacked, and everything was taken away.