Question about signing out

Zicatela14 Said:

"Think my iCloud ID is hacked. Should I sign out"

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If you think your Apple ID has been hacked, then by all means, it's best to modify your login credentials (reset your password), and then setup Two-Factor Authentication and enable it.

Apple ID Password Change

 What to do after you change your Apple ID or password - Apple Support     I suggest doing this before you change your Apple ID or password.