More info on the leak: https://www.bleepingcomputer.com/news/security/200-million-twitter-users-email-addresses-allegedly-leaked-online/
Can you sue? Yes. You can. You can sue for anything.<p>Will you gain anything? Unlikely.<p>Why?<p>Historically these sort of lawsuits require you to have material damages in order to get anything. Have you been materially damaged?