What’s scary? When installing the software, someone asked you to read the address book, and you agreed. As for the person who changed his vest in Kuaishou, of course you don't recognize him. It may be that the public ID account causes the address book to be synchronized. Life is also a process of constantly saying goodbye. There will be more and more numbers in our address book, but fewer and fewer people will be contacted. Data information is out of sync, causing confusion in device information. Criminals collect other people's information and then sell it, so a lot of people's information is leaked. Is this synchronization function enabled on both Apple phones, so the address book is confused? The network environment still needs to be purified because there are too many businesses and scammers, especially for underage netizens. The account ID is also logged in on other mobile phones, so the address book of that mobile phone will appear in your mobile phone.