Telephone call from apple
I received a call from Apple support saying my iCloud has been compromised is this true
iPhone 11, iOS 14
It is a scam. Apple doesn't make unsolicited phone calls. If there was a problem you would be notified when attempting to log in, including when logging into this forum. Also see: https://support.apple.com/en-us/HT204759
Also, the caller id number shown on scam and marketing calls is frequently not the number actually originating the call. The number is often spoofed.
One option to consider is Settings > Phone > Silence Unknown Callers. See: https://support.apple.com/en-us/HT207099