is it against the law to hack into someones personal email account?
ANSWER: Yes. Its a Felony in Florida and most other states.
Almost all states have their own version of this, but here is Florida:
815.06 Offenses against computer users.--(1) Whoever willfully, knowingly, and without authorization:(a) Accesses or causes to be accessed any computer, computer system, or computer network;(2)(a) Except as provided in paragraphs(b) and(c), whoever violates subsection(1) commits a felony ...