If you don’t use features like dictation or emoji shortcuts, you probably won’t miss it either. To fix it do this Account recovery is typically used in the following common scenarios
Free Images : chain, keychain, brass, set of keys 4928x3264 - - 678165
No access to trusted phone number or changed number
Do you really mean a security key
Or do you mean a recovery key If you lose all of your trusted devices and security keys, you could be locked out of your account permanently. the information below is based on apple's support article Set up a recovery key. However, when you generate a recovery key, you can't use account recovery.
Go to the security section and click edit Remove the device you no longer wish to use to verify your identity If you have additional devices with find my iphone enabled, you can verify them as trusted devices You can also add additional trusted phone numbers
if you lost your recovery key
The automated call system continues It may ask you to press a key again By default the iphone does not send the keypress