New York Laws
Article 250 - Offenses Against the Right to Privacy
250.25 - Tampering With Private Communications.

A person is guilty of tampering with private communications when:

1. Knowing that he does not have the consent of the sender or
receiver, he opens or reads a sealed letter or other sealed private
communication; or

2. Knowing that a sealed letter or other sealed private communication
has been opened or read in violation of subdivision one of this section,
he divulges without the consent of the sender or receiver, the contents
of such letter or communication, in whole or in part, or a resume of any
portion of the contents thereof; or

3. Knowing that he does not have the consent of the sender or
receiver, he obtains or attempts to obtain from an employee, officer or
representative of a telephone or telegraph corporation, by connivance,
deception, intimidation or in any other manner, information with respect
to the contents or nature thereof of a telephonic or telegraphic
communication; except that the provisions of this subdivision do not
apply to a law enforcement officer who obtains information from a
telephone or telegraph corporation pursuant to section 250.35; or

4. Knowing that he does not have the consent of the sender or
receiver, and being an employee, officer or representative of a
telephone or telegraph corporation, he knowingly divulges to another
person the contents or nature thereof of a telephonic or telegraphic
communication; except that the provisions of this subdivision do not
apply to such person when he acts pursuant to section 250.35.

Tampering with private communications is a class B misdemeanor.