I got a phone call from apple that my iCloud account has been hacked

No. They only call people if that person filed a support request or bought something from the online Apple Store.

(200213)

If they claimed to be from Apple, yes.

If they claimed to be from your financial institution, it depends on their policies.

(200425)

Received multiple phone calla about unusual transactions on my iCloud account. Is this a scam?