Md. Code, Criminal Law § 3–906

(a) (1) In this section the following words have the meanings indicated.

(2) “Telegraph company” has the meaning stated in § 1–101 of the Public Utilities Article.

(3) “Telegraph lines” has the meaning stated in § 1–101 of the Public Utilities Article.

(4) “Telephone company” has the meaning stated in § 1–101 of the Public Utilities Article.

(5) “Telephone lines” has the meaning stated in § 1–101 of the Public Utilities Article.

(b) An employee or agent of a telegraph company or telephone company, or of a person operating telegraph lines or telephone lines for profit in the State, may not:

(1) willfully divulge the contents or nature of the contents of a private communication that is entrusted to the person for transmission or delivery; or

(2) willfully refuse or neglect to transmit or deliver a private communication.

(c) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 3 months or a fine not exceeding $500 or both.