The Agreement Everyone Signs and Nobody Reads: What a Nondisclosure Agreement Actually Does
By Casey Scott McKay ·
A nondisclosure agreement is the most frequently signed and least frequently read document in commercial practice, and the clauses that decide disputes are rarely the ones parties negotiate. This article explains what an NDA actually does and does not do, why the definition of confidential information matters more than the term, what the four standard exclusions mean in practice, and why a residuals clause can quietly hand away the whole protection. It covers the marking requirement and why it is enforced against the discloser, the permitted purpose clause that most parties leave vague, survival periods and what happens to trade secrets when they expire, and the immunity notice whose omission costs exemplary damages. It closes with the clauses that matter in specific settings — diligence, joint development, and vendor relationships — and with what an NDA cannot accomplish.
IP and Technology > Trade Secrets | Article | Published 30 October 2024 - Updated 8 July 2026 | Casey Scott McKay - marksy.us
Summary. A nondisclosure agreement is the most frequently signed and least frequently read document in commercial practice, and the clauses that decide disputes are rarely the ones parties negotiate. This article explains what an NDA actually does and does not do, why the definition of confidential information matters more than the term, what the four standard exclusions mean in practice, and why a residuals clause can quietly hand away the whole protection. It covers the marking requirement and why it is enforced against the discloser, the permitted purpose clause that most parties leave vague, survival periods and what happens to trade secrets when they expire, and the immunity notice whose omission costs exemplary damages. It closes with the clauses that matter in specific settings — diligence, joint development, and vendor relationships — and with what an NDA cannot accomplish.
Keywords: nondisclosure agreement, confidentiality agreement, mutual NDA, definition of confidential information, standard exclusions, residuals clause, marking requirement, permitted purpose, term and survival, return and destruction, no license clause, feedback clause, non-solicitation, injunctive relief clause, governing law, DTSA immunity notice, standstill, clean team, evaluation material, third party disclosure
This is premium Marksy content — the full document is available to subscribers.