What an NDA Does
What has an NDA actually protected?
The idea
An NDA creates a contractual duty of confidence; it does not stop disclosure happening or prove what was shared.
In the real world
Confidential information circulating after signature, with no record of what was given.
Going deeper
An NDA creates a contractual duty of confidence. It does not physically prevent disclosure, and it does not record what you shared.
That second gap is what usually decides disputes. Establishing breach requires showing that specific information was disclosed to them and that it was the source, rather than independent development or public knowledge. Neither is established by the agreement itself. Keeping a dated record of exactly what was provided, and to whom, is the part that makes the agreement enforceable in practice.
Where it stops applying
NDAs still have real deterrent value and are standard practice for good reason. The point is calibrating expectations about what protection has actually been obtained.
Why it matters
It sets a realistic expectation of the protection you have actually obtained.
Try this today
When sharing under an NDA, keep a dated record of exactly what you disclosed.
Test yourself
A company shares plans under an NDA and a competing product appears. What will be hardest to establish?
Show the answer
That the specific information was disclosed and that it was the source, rather than independent development. An NDA gives a claim if breach can be shown; the evidential work of what was shared and when is what usually decides it, and the agreement does not create that record.
Learn this in the feed Answering from memory, then again days later, is what makes it stick.