NDA
full spelling ： Non Disclosure Agreement
alias ： Confidential Disclosure Agreement
A non-disclosure agreement is a legal contract between two or more parties acknowledging that the confidence of information provided in private will be respected. A non-disclosure agreement creates a confidential relationship between the parties to protect any type of trade secret.
Non Disclosure Agreements are common in the competitive industries. NDAs are particularly common in cutting edge computer software and hardware industries where employees may be asked to sign a non disclosure agreement in order to protect the company's trade secrets, intellectual property, or other confidential information.