Iphone keeps receiving the message "[Apple] Your icloud keychain verification code is * * * *". What happened?

This is Apple's iCloud verification code message. If it is not my operation, then someone is logging in to the iCloud account associated with the mobile phone number that accepts SMS.

Be careful not to disclose the digital verification code in the short message, otherwise there will be the risk that the iCloud account will be stolen and the data will be leaked.

Extended data:

Introduction to icloud:

Icloud, Xcerion was released on April 9, 2009. It is the first free online computer in the world, which can provide anyone in the world with their own online computer, plus free storage, application, virtual desktop and backup access, and can be used from any computer connected to the Internet.

20 1 1 On June 7th, 2008, Apple officially released the iCloud cloud service at the Global Developers Conference held at the MosconeWest Convention and Exhibition Center in San Francisco, which can seamlessly connect existing Apple devices.

ICloud is a cloud service provided by Apple, which allows users to store 5GB of data for free. The free cloud service iCloud will store and access your music, photos, applications, calendars and documents in a new way, and push all your settings wirelessly, and everything will be done automatically. Managing your content becomes extremely simple, and everything will be happy anytime, anywhere.

On 2011May 3 1 day, Apple officially announced that it owns iCloud products for the first time. Apple claims that iCloud will replace MobileMe. iCloud is completely rewritten on the basis of the original MobileMe function, providing the original mail, calendar and contact synchronization functions.

20 1 1 On June 6, 2008, Apple CEO Steve Jobs hosted the Global Developers Conference and officially released cloud services iCloud, iOS 5 and OS X Lion. The function of iCloud is to store content, including purchased music, applications and e-books, and push them to all devices.

On March 8, 20 18, Apple confirmed that "user iCloud was invaded". In a statement, Apple China confirmed the incident, and said that he would defend the user's privacy and conduct an investigation with the user.

Baidu encyclopedia -icloud