A non-disclosure agreement (or “NDA”) is a binding contract between two, or more, parties in which they agree that certain information (regarding a product or a business) will remain confidential and will not be shared for a predetermined period. Most NDAs are one-sided agreements. For example, when an entrepreneur presents his idea to investors. But there are also mutual NDAs when all parties agree to keep the shared information confidential (for example when software is mutually developed). This kind of agreement often takes place in the hi-tech field due to concerns regarding the stealing of intellectual property which hasn’t been registered yet and thus is not legally protected. Signed NDA usually protects ideas, expressions, techniques, inventions etc.