There Are Practical Limitations to NDAs
NDAs are supposed to “protect” you, but how well do they work?
NDAs can be used well, and they do “protect” you in the right circumstances. NDAs can also be used badly, and with terribly outcomes.
There are risks with every NDA. The most likely risk is that someone unintentionally leaks your secrets to someone else. It happens, and it is human nature.
You need to be cognizant of these risks and use your business judgment to figure out whether you want to take that risk or not.
Remember: an NDA is an agreement that you make with someone you TRUST, not someone you DISTRUST.