New contract changes are unenforceable without compensation in most cases. If you're getting a new NDA or somesuch rolled out it's why it usually comes with "F

New contract changes are unenforceable without compensation in most cases. If you're getting a new NDA or somesuch rolled out it's why it usually comes with "Free 10$ starbucks gift cards for everyone surprise!" but a lot of the time any contract you sign that does nothing to benefit you is illegal - you can also refuse to sign new contracts and, depending on the company, they might just shrug and carry on with the old contract.