First, users may start to receive all kinds of inexplicable text messages. If the user's personal information is leaked, then the mobile phone number has long been known by others. Therefore, some people or organizations may send a lot of inexplicable short messages to users' mobile phone numbers, perhaps advertisements or fraudulent information. In short, don't trust others when you see such a message.
Second, users may receive many advertising calls every day. Because users' personal information is leaked, they may receive various advertising calls every day. Some are selling houses, some are selling products, and some are from financial institutions. So, you can choose to hang up directly after receiving these calls.
Third, users' mailboxes may receive personal information of various junk users, including frequently used emails. Therefore, you may receive a lot of spam in your mailbox in the future. However, some mailboxes have the function of intercepting spam, so you still don't have to worry too much. At the same time, many people don't use email very much, but don't be surprised to see a lot of junk mail when they open it one day.
If personal information is leaked, then these situations may happen. Do you have anything to add?