Confidentiality Clauses in Employment Agreements: Scope, Duration, and Limits

Your employment agreement almost certainly includes a confidentiality clause. Like most people, you probably scrolled past it. That's worth revisiting — because confidentiality clauses can have real consequences for what you're able to say, write, or disclose after leaving your job, sometimes for years. Here's what these clauses actually cover and where the legitimate limits are.

What Confidentiality Clauses Cover

The confidentiality clause in an employment agreement — sometimes called an NDA, or incorporated into a PIIA — restricts you from disclosing your employer's confidential information during and after employment.

The definition of "Confidential Information" is usually broad. It typically includes: technical data and source code, trade secrets, research and development plans, product roadmaps, financial information, customer lists and contact information, business strategies and plans, marketing approaches, and personnel information. Most definitions include a catch-all: "all other information that the company treats as confidential or that would be understood by a reasonable person familiar with the business to be confidential."

Two important structural features to look for:

1. Whether information needs to be marked "confidential": Some agreements protect only information that has been labeled or designated as confidential. Others protect anything that would reasonably be understood to be confidential, regardless of labeling. The latter is broader and more common in tech company agreements.

2. Whether the employee has access to something through their role: Even if information isn't marked, if you learned it because of your employment, it's generally covered by the confidentiality obligation.

The Trade Secret vs Confidential Info Distinction

These two categories are often treated interchangeably, but they're legally distinct with different durations and protection mechanisms.

Trade secrets are a specific legal category. Under the Defend Trade Secrets Act (DTSA) and state trade secret laws, information qualifies as a trade secret if: (1) it derives independent economic value from not being generally known or readily ascertainable, and (2) the owner takes reasonable measures to protect its secrecy.

Trade secret protections have no fixed expiration — they last as long as the information remains secret and valuable. The statutory civil statute of limitations for DTSA claims is five years, but the underlying obligation not to disclose trade secrets continues indefinitely.

Confidential information in an employment agreement often covers a broader category than legal trade secrets — things that may not technically qualify as trade secrets but that the employer wants to keep private. For this broader category, employment agreements often specify a time limit: typically two to five years post-employment.

Duration: How Long Do Obligations Last?

Confidentiality obligations in employment agreements typically have a tiered duration structure:

• Trade secrets: Indefinitely (as long as they remain secret).
• Other confidential information: A specified period, commonly 2-5 years post-employment.
• Personnel information: Often indefinitely (this is typically considered particularly sensitive).

When reviewing the confidentiality section, look for the specific duration language. If the agreement says "confidentiality obligations survive indefinitely," that likely applies to trade secrets. If it says "for a period of three years following termination," that limits the non-trade-secret confidentiality obligations.

The DTSA Immunity Notice Requirement

The Defend Trade Secrets Act (2016) includes an important provision that employers often overlook: the DTSA requires that any employment agreement containing trade secret confidentiality provisions include a notice of an employee's whistleblower immunity.

Specifically, the DTSA provides immunity from liability under the DTSA (and similar state laws) for employees who disclose trade secrets in confidence to a government official or attorney for the purpose of reporting a legal violation, or who disclose a trade secret in a sealed court filing in connection with an anti-retaliation lawsuit.

Employment agreements or PIIAs that contain confidentiality provisions must include this immunity notice — either directly in the agreement or by reference to a written employer policy that contains the notice. If the notice is absent, the employer may be unable to recover exemplary damages or attorney fees in a trade secret lawsuit against the employee under the DTSA.

From the employee's perspective: if your confidentiality agreement doesn't include the DTSA immunity language, that's a technical compliance issue in the agreement, not a protection problem for you. But it's worth noting and flagging.

What's Too Broad

Employers sometimes draft confidentiality clauses that go beyond what courts will enforce. The most common overreach:

"All information learned during employment": This is overbroad. General industry knowledge, skills, and professional expertise that you developed while employed are not "confidential" in a legally protectable sense. You own your brain. An agreement that attempts to prevent you from using skills and knowledge you developed during employment is likely unenforceable to that extent.

General customer information in the public domain: If the company's customer list consists of information readily available on the internet (company websites, LinkedIn profiles), that information likely doesn't qualify as a trade secret. Confidentiality obligations are generally strongest for information that isn't publicly available.

Post-employment restrictions on general industry knowledge: Your understanding of how to build a particular type of software, design a system architecture, or manage an engineering team is yours. These general professional skills and methods can't be made confidential.

Carve-Outs: What You Can Always Say

Even the broadest confidentiality agreement has exceptions:

• Publicly available information: You can discuss information that has already been publicly disclosed by the company.
• Government investigations: The DTSA and other laws protect disclosures to government agencies investigating legal violations. You can speak to the SEC, EEOC, OSHA, or similar agencies about potential legal violations without violating a confidentiality agreement.
• Your legal counsel: Disclosures to attorneys in the course of seeking legal advice are protected.
• General professional experience: Your resume and professional development are yours. You can describe your role, responsibilities, and the types of problems you worked on — you just can't disclose specific confidential details.

The Bottom Line

Confidentiality clauses in employment agreements can have lasting effects on what you can share publicly about your professional experience, particularly if you worked on unannounced projects. Before signing, paste your employment agreement or PIIA into dott.legal for a free AI risk analysis that evaluates the confidentiality scope, duration, and any provisions that may be overbroad. For situations involving sensitive prior work or potential whistleblower disclosures, attorney-validated review is $349 with 24-hour turnaround.