Final answer:
The use of encryption is one of the most common techniques to protect the privacy and integrity of digital information and ensure private secure communication.
Step-by-step explanation:
One of the most common techniques to protect the privacy and integrity of digital information and ensure private secure communication is the use of encryption. Encryption involves converting digital data into a form that can only be read by authorized parties, making it highly secure and protecting it from unauthorized access or tampering.
For example, when you send a message over a secure messaging app like Signal, the message is encrypted so that only the intended recipient can decrypt and read it. This ensures that your communication remains private and cannot be intercepted by others.
Encryption is used in various contexts, including online banking transactions, password protection, secure file sharing, and protecting sensitive data stored on devices or in the cloud.