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Illinois Compiled Statutes

Information maintained by the Legislative Reference Bureau
Updating the database of the Illinois Compiled Statutes (ILCS) is an ongoing process. Recent laws may not yet be included in the ILCS database, but they are found on this site as Public Acts soon after they become law. For information concerning the relationship between statutes and Public Acts, refer to the Guide.

Because the statute database is maintained primarily for legislative drafting purposes, statutory changes are sometimes included in the statute database before they take effect. If the source note at the end of a Section of the statutes includes a Public Act that has not yet taken effect, the version of the law that is currently in effect may have already been removed from the database and you should refer to that Public Act to see the changes made to the current law.

(765 ILCS 1065/) Illinois Trade Secrets Act.

765 ILCS 1065/1

    (765 ILCS 1065/1) (from Ch. 140, par. 351)
    Sec. 1. This Act shall be known as and may be cited as the "Illinois Trade Secrets Act".
(Source: P.A. 85-366.)

765 ILCS 1065/2

    (765 ILCS 1065/2) (from Ch. 140, par. 352)
    Sec. 2. As used in this Act, unless the context requires otherwise:
    (a) "Improper means" includes theft, bribery, misrepresentation, breach or inducement of a breach of a confidential relationship or other duty to maintain secrecy or limit use, or espionage through electronic or other means. Reverse engineering or independent development shall not be considered improper means.
    (b) "Misappropriation" means:
    (1) acquisition of a trade secret of a person by another person who knows or has reason to know that the trade secret was acquired by improper means; or
    (2) disclosure or use of a trade secret of a person without express or implied consent by another person who:
    (A) used improper means to acquire knowledge of the trade secret; or
    (B) at the time of disclosure or use, knew or had reason to know that knowledge of the trade secret was:
    (I) derived from or through a person who utilized improper means to acquire it;
    (II) acquired under circumstances giving rise to a duty to maintain its secrecy or limit its use; or
    (III) derived from or through a person who owed a duty to the person seeking relief to maintain its secrecy or limit its use; or
    (C) before a material change of position, knew or had reason to know that it was a trade secret and that knowledge of it had been acquired by accident or mistake.
    (c) "Person" means a natural person, corporation, business trust, estate, trust, partnership, association, joint venture, government, governmental subdivision or agency, or any other for-profit or not-for-profit legal entity.
    (d) "Trade secret" means information, including but not limited to, technical or non-technical data, a formula, pattern, compilation, program, device, method, technique, drawing, process, financial data, or list of actual or potential customers or suppliers, that:
    (1) is sufficiently secret to derive economic value, actual or potential, from not being generally known to other persons who can obtain economic value from its disclosure or use; and
    (2) is the subject of efforts that are reasonable under the circumstances to maintain its secrecy or confidentiality.
(Source: P.A. 85-366.)

765 ILCS 1065/3

    (765 ILCS 1065/3) (from Ch. 140, par. 353)
    Sec. 3. (a) Actual or threatened misappropriation may be enjoined. Upon application to the court, an injunction may be terminated when the trade secret has ceased to exist, provided that the injunction may be continued for an additional reasonable period of time in appropriate circumstances for reasons including, but not limited to an elimination of the commercial advantage that otherwise would be derived from the misappropriation, deterrence of willful and malicious misappropriation, or where the trade secret ceases to exist due to the fault of the enjoined party or others by improper means.
    (b) If the court determines that it would be unreasonable to prohibit future use due to an overriding public interest, an injunction may condition future use upon payment of a reasonable royalty for no longer than the period of time the use could have been prohibited.
    (c) In appropriate circumstances, affirmative acts to protect a trade secret may be compelled by a court order.
(Source: P.A. 85-366.)

765 ILCS 1065/4

    (765 ILCS 1065/4) (from Ch. 140, par. 354)
    Sec. 4. (a) In addition to the relief provided for by Section 3, a person is entitled to recover damages for misappropriation. Damages can include both the actual loss caused by misappropriation and the unjust enrichment caused by misappropriation that is not taken into account in computing actual loss. If neither damages nor unjust enrichment caused by the misappropriation are proved by a preponderance of the evidence, the court may award damages caused by misappropriation measured in terms of a reasonable royalty for a misappropriator's unauthorized disclosure or use of a trade secret.
    (b) If willful and malicious misappropriation exists, the court may award exemplary damages in an amount not exceeding twice any award made under subsection (a).
(Source: P.A. 85-366.)

765 ILCS 1065/5

    (765 ILCS 1065/5) (from Ch. 140, par. 355)
    Sec. 5. If (i) a claim of misappropriation is made in bad faith, (ii) a motion to terminate an injunction is made or resisted in bad faith, or (iii) willful and malicious misappropriation exists, the court may award reasonable attorney's fees to the prevailing party.
(Source: P.A. 85-366.)

765 ILCS 1065/6

    (765 ILCS 1065/6) (from Ch. 140, par. 356)
    Sec. 6. In an action under this Act, a court shall preserve the secrecy of an alleged trade secret by reasonable means, which may include granting protective orders in connection with discovery proceedings, holding in camera hearings, sealing the records of the action, and ordering any person involved in the litigation not to disclose an alleged trade secret without prior court approval.
(Source: P.A. 102-558, eff. 8-20-21.)

765 ILCS 1065/7

    (765 ILCS 1065/7) (from Ch. 140, par. 357)
    Sec. 7. An action for misappropriation must be brought within 5 years after the misappropriation is discovered or by the exercise of reasonable diligence should have been discovered. For the purposes of this Act, a continuing misappropriation constitutes a single claim.
(Source: P.A. 85-366.)

765 ILCS 1065/8

    (765 ILCS 1065/8) (from Ch. 140, par. 358)
    Sec. 8. (a) Except as provided in subsection (b), this Act is intended to displace conflicting tort, restitutionary, unfair competition, and other laws of this State providing civil remedies for misappropriation of a trade secret.
    (b) This Act does not affect:
    (1) contractual remedies, whether or not based upon misappropriation of a trade secret, provided however, that a contractual or other duty to maintain secrecy or limit use of a trade secret shall not be deemed to be void or unenforceable solely for lack of durational or geographical limitation on the duty;
    (2) other civil remedies that are not based upon misappropriation of a trade secret;
    (3) criminal remedies, whether or not based upon misappropriation of a trade secret; or
    (4) the definition of a trade secret contained in any other Act of this State.
(Source: P.A. 85-366.)

765 ILCS 1065/9

    (765 ILCS 1065/9) (from Ch. 140, par. 359)
    Sec. 9. This Act takes effect on January 1, 1988, and does not apply to misappropriation occurring prior to its effective date.
(Source: P.A. 85-366.)