How do I if someone else connected to my I’d?

Click on this link "If you think your Apple ID has been compromised" --> https://support.apple.com/HT204145

'Checklist: If you want to see if anyone else has access to your device or accounts' click here --> https://support.apple.com/HT212021

Security and your Apple ID - https://support.apple.com/HT201303

Contact Apple for help with Apple ID account security - https://support.apple.com/HT204169 "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues." Better for directly reporting an issue.

szelina1 wrote:

There is someone else devices on my iCloud.com

Go to Settings, tap your name at the top. If you see a device listed that you don’t recognize it tap on it and remove it. Then change your Apple ID password→Change your Apple ID password - Apple Support and add 2 factor authentication to your Apple ID if you don’t have it already→Two-factor authentication for Apple ID - Apple Support

Here is more general information→If you think your Apple ID has been compromised - Apple Support

There is someone else devices on my iCloud.com