Every organization has information it can't afford to lose to competitors or to the public. Customer lists the sales team spent years building. Pricing models that took analysts months to calibrate. Product roadmaps that tip off competitors about strategy. Source code that embeds years of engineering work. Proprietary information is the legal and operational term for that category of business asset, and protecting it requires a stack of legal agreements, access controls, and operational procedures. One weak link, one departed employee who walks out with the customer list, and the protection fails entirely.
What Typically Counts as Proprietary Information Proprietary information usually includes customer and prospect lists, pricing and cost data, product and service roadmaps, engineering schematics and source code, manufacturing processes, financial projections and operating data, strategic plans, personnel records, and non-public communications from customers and partners.
Note the difference between proprietary information and trade secrets. Trade secrets are a subset of proprietary information that qualifies for additional legal protection under the Defend Trade Secrets Act and state trade secret laws. Not all proprietary information is a trade secret; trade secret designation requires that the information be subject to reasonable protection measures and derive value from its secrecy. Most employee-facing confidentiality agreements cover both categories.
Employment Agreements That Protect Proprietary Information Three agreement types work together. Confidentiality agreements (NDAs) establish the employee's obligation to keep proprietary information confidential, both during and after employment. Non-solicitation agreements prohibit departing employees from soliciting former colleagues or customers for a defined period. Assignment of inventions agreements establish that any inventions or work product the employee creates during employment belongs to the employer.
Non-compete agreements are more limited. Federal and state regulators have significantly restricted non-compete enforcement. The FTC attempted to ban most non-compete agreements in 2024, and while that rule was blocked in federal court, many states (California, Oklahoma, North Dakota, Minnesota, and others) already prohibit or severely limit non-competes. The trend is clear: protection of proprietary information has to rest primarily on confidentiality and non-solicitation agreements, with non-competes playing a narrower role.
What Happens If an Employee Takes Proprietary Information? Remedies include civil suits for breach of contract and misappropriation of trade secrets, injunctive relief (court orders preventing the use or disclosure of the information), monetary damages for actual losses, and in some cases criminal prosecution under the federal Economic Espionage Act. Speed matters. Moving quickly after discovery (typically within days or weeks) is often the difference between containing the issue and watching it spread. Forensic analysis of the departing employee's devices and network activity often provides the evidence needed to support a claim.
Operational Controls That Back Up the Legal Protection Contracts alone don't protect proprietary information. Access controls matter as much or more. Role-based permissions that give employees access only to the proprietary information they need for their specific role. Audit logging that tracks who accessed what and when. Device management that prevents unauthorized copying to personal devices. Email and file transfer restrictions that catch unusual bulk downloads. And clean exit procedures that recover company devices, revoke system access, and capture any outstanding proprietary information before the employee's last day.
The weakest link is often the exit process. An employee who has decided to leave for a competitor has weeks or months to copy proprietary information before they resign, and the organization typically doesn't know it's happening until after the fact. Continuous access auditing (rather than point-in-time review at exit) catches exfiltration earlier. Some organizations run automated monitoring for unusual download patterns; others require manual review of system activity for departing employees.
Building a Proprietary Information Protection Program That Holds Up Five elements make a proprietary information program defensible in court and sustainable in practice. Written agreements (confidentiality, non-solicitation, assignment of inventions) executed at hire for every employee. Clear classification of proprietary information so employees know what's covered. Access controls that implement least-privilege principles. Exit procedures that recover devices, revoke access, and capture outstanding proprietary information. And a response playbook for suspected misappropriation that engages legal, IT, and HR quickly enough to preserve evidence and pursue remedies.
The US Patent and Trademark Office publishes guidance on patent and copyright protection for certain categories of proprietary information at uspto.gov . The Department of Justice covers the federal Economic Espionage Act and related criminal enforcement at justice.gov/criminal/criminal-ccips . Tie the proprietary information program to your broader onboarding and exit interview processes so protection starts on day one and continues through the last day.
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