一般來說，Apple ID 被鎖定的原因，大多都是輸入錯誤密碼次數太多，但是最近有網民遇上一些另外的情況。
有網民在 Reddit 和 Twitter 投訴，自己的 Apple ID 因為一些保安原因突然遭到登出和鎖定，需要重新設定密碼，用戶在事前並沒有從 iPhone、Apple TV 和其他裝置收到任何警告，就 Apple ID 卻無故被鎖定了。
@AppleSupport any update on users being locked out of their apple id and having to reset passwords? affecting a number of users. thanks.
— ㅤ (@lfckristian) November 13, 2018
My AppleID was locked “for security reasons” this afternoon. I rarely type the password, have 2FA enabled, noticed nothing odd, and received no indication of the lock. I wonder if something interesting is going on?
Was anyone else’s AppleID account locked recently?
— Paul Dokas (@pauldokas) November 13, 2018
如果 Apple ID 因安全問題被鎖，iMessage、iCloud 和 Apple Music 將不能使用，設定 App 的 Apple ID 設定也會出現警告。要解鎖 Apple ID，你需要回答 Apple ID 相關問題以及輸入受信任的手機號碼作認證之用，另外也需要重設密碼。
目前出現大規模鎖 Apple ID 的原因未明，但有網民指可能有一堆黑客嘗試破解 Apple ID 密碼導致，就 Apple ID 被鎖的情況，蘋果已在官方 Twitter 帳號以及官網提供解決方法。
We understand why you’d want to get this resolved as quick as possible. First, have you had a chance to look over the following article? It can provide some help when you get this message. https://t.co/UsfUrfZqjn
— Apple Support (@AppleSupport) November 12, 2018
