Massachusetts § 42 - Trade secrets; definitions applicable to Secs. 42 to 42G

Full text of Massachusetts Massachusetts General Laws § 42 — Trade secrets; definitions applicable to Secs. 42 to 42G, with citation guidance and answers to common questions.

§ 42. Trade secrets; definitions applicable to Secs. 42 to 42G

[Text of section applicable as provided by 2018, 228, Sec. 70.]

Section 42. As used in this section and in sections 42A to 42G, inclusive, the following words, shall unless the context clearly requires otherwise, have the following meanings:

(1) ''Improper means'', includes, without limitation, theft, bribery, misrepresentation, unreasonable intrusion into private physical or electronic space, or breach or inducement of a breach of a confidential relationship or other duty to limit acquisition, disclosure or use of information; reverse engineering from properly accessed materials or information is not improper means.

(2) ''Misappropriation'',

(i) an act of acquisition of a trade secret of another by a person who knows or who has reason to know that the trade secret was acquired by improper means; or

(ii) an act of disclosure or of use of a trade secret of another without that person's express or implied consent by a person who

(A) used improper means to acquire knowledge of the trade secret or

(B) at the time of the actor's disclosure or use, knew or had reason to know that the actor's knowledge of the trade secret was

(I) derived from or through a person who had utilized improper means to acquire it;

(II) acquired under circumstances giving rise to a duty to limit its acquisition, disclosure, or use; or

(III) derived from or through a person who owed a duty to the person seeking relief to limit its acquisition, disclosure, or use; or

(C) before a material change of the actor's position, knew or had reason to know that it was a trade secret and that the actor's knowledge of it had been acquired by accident, mistake, or through another person's act described in clause (A) of paragraph (ii) or subclauses (I) or (II) of clause (B) of said paragraph (ii) of the definition of Misappropriation.

(3) ''Person'', a natural person, corporation, business trust, estate, trust, partnership, association, joint venture, government, governmental subdivision or agency, or any other legal or commercial entity.

(4) ''Trade secret'', specified or specifiable information, whether or not fixed in tangible form or embodied in any tangible thing, including but not limited to a formula, pattern, compilation, program, device, method, technique, process, business strategy, customer list, invention, or scientific, technical, financial or customer data that

(i) at the time of the alleged misappropriation, provided economic advantage, actual or potential, from not being generally known to, and not being readily ascertainable by proper means by, others who might obtain economic advantage from its acquisition, disclosure or use; and

(ii) at the time of the alleged misappropriation was the subject of efforts that were reasonable under the circumstances, which may include reasonable notice, to protect against it being acquired, disclosed or used without the consent of the person properly asserting rights therein or such person's predecessor in interest.

Source: official Massachusetts text · Last verified 2026-08-27

Frequently Asked Questions About Massachusetts § 42

What does Massachusetts General Laws § 42 cover?

Section 42 ("Trade secrets; definitions applicable to Secs. 42 to 42G") is part of the Massachusetts General Laws, the codified statutory law of Massachusetts. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Massachusetts § 42?

A common citation format is "Massachusetts General Laws § 42" (Massachusetts). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Massachusetts law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Massachusetts official source linked on this page or consult a licensed Massachusetts attorney.

How does Massachusetts § 42 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Massachusetts can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Massachusetts.