Trade secret cases in Illinois can destroy careers and businesses long before they ever reach a courtroom. These cases often arise when an employee leaves a company, a competitor launches a similar product, or confidential information is shared during a business deal. Because Illinois treats the theft of trade secrets as both a civil and criminal offense, anyone accused needs to act quickly to protect their rights, reputation, and livelihood.
Illinois follows the Illinois Trade Secrets Act (765 ILCS 1065), which defines a trade secret as information that derives economic value from not being generally known and is subject to reasonable efforts to maintain its secrecy. Examples include formulas, processes, marketing data, algorithms, pricing lists, and customer databases.
A person commits trade secret theft when they:
Under the Illinois Criminal Code (720 ILCS 5/16-40), these acts can be prosecuted as felonies. The penalties depend on the value of the information and the amount of financial damage caused. Even a single document or email can lead to years in prison and significant fines.
Most cases start when a company notices suspicious behavior. A departing employee might download large amounts of data, email files to a personal account, or join a competing firm soon after leaving. Employers often hire forensic experts to review digital activity and then refer the case to law enforcement.
In Illinois, these matters are typically investigated by:
Once investigators believe they can identify stolen material, they may execute search warrants or issue subpoenas for computers, phones, or cloud storage. Because trade secret data can exist in emails, apps, and messaging platforms, digital evidence plays a central role in every case.
Many trade secret cases begin under Illinois law but later shift to federal jurisdiction. This happens when the alleged theft involves interstate or international commerce, or when federal agencies such as the FBI or Department of Justice become involved.
The federal government prosecutes these cases under the Economic Espionage Act of 1996 (18 U.S.C. §§ 1831–1839). A case may become federal when:
Federal penalties are severe, with individuals facing up to 10 years in prison and corporations facing fines up to $5 million. Because state and federal authorities sometimes work together, a strong defense must be prepared for both levels of prosecution.
Trade secret cases are often built on circumstantial evidence and assumptions. Prosecutors and companies must prove that the information actually qualified as a trade secret and that it was obtained or used without authorization. A skilled Illinois criminal defense lawyer can challenge both points.
Effective defense strategies may include:
In some cases, a defense attorney can negotiate a civil settlement or non-prosecution agreement that avoids criminal conviction entirely.
Illinois prosecutors must prove intent — that the accused knowingly took or used confidential information without permission. Employees who retained files for reference, worked from home, or mistakenly saved documents can sometimes be swept into investigations despite having no intent to steal.
Maintaining clear documentation of what data you accessed, how it was used, and what was deleted after leaving a company can be key to your defense. Your attorney can also request expert analysis to demonstrate that sensitive files were never opened or transmitted.
If you learn that you are being investigated for trade secret theft, take these steps immediately:
Early legal intervention can often prevent charges from being filed or limit the scope of the case. Your lawyer can communicate with the company’s counsel, respond to subpoenas, and ensure that your rights are protected throughout the process.
If you have been accused of stealing or misusing trade secrets in Illinois, contact Glozman Law immediately. Our Chicago defense attorneys understand both the state and federal laws that govern trade secret cases and know how to challenge forensic evidence, intent, and corporate claims of confidentiality.
Call Glozman Law today to schedule a confidential consultation. Protect your career, your reputation, and your future before investigators make their next move.