It may depend on the services. A few years ago I lost an old email account, a hotmail one, because it was flagged for being potentially compromised. An account

It may depend on the services. A few years ago I lost an old email account, a hotmail one, because it was flagged for being potentially compromised. An account flagged as so has its password wiped and you have to reset it by following a link that is sent to your recovery email address. Somehow, and I don't know how my 10yo-self managed to do this, but the account's mail and the recovery mail were the same, so I wasn't able to recover my account this way. The only alternative was to fill up a form with your full name, date of birth (probably lied about it at this time), passwords you may have used for this account, people to whom I had sent emails (I only used it to register to websites)... I have never been able to do a "perfect score" to this test monitored only by robots. Now my account, from what I've read online, is probably disabled forever due to a 2 years inactivity.