How to...

I have a question. How to crack an alt minecraft account, that is migrated. I mean how get their emails?

You don't. You use keyloggers/rats or last login stealers to get migrated accounts.

How to get and how to use last login stealers? Can you post tutorial with these keyloggers,rats and last login stealers?

Google is your friend.

All you need do is get DarkComet in the version of 5.3. Then port forward, make a stub, crypt your stub, send it to some retard and tell him its force op, retard opens your rat then your in business!