What Is Encryption in Computer Security?

Data encryption is a potent cybersecurity measure that scrambles sensitive information into unreadable gibberish, so only the intended recipient can decode it. It is an essential part of digital transformation because it helps to protect the confidentiality of information stored on or transmitted through computers or networks such as the Internet. It also provides authenticity and integrity, assuring that the data is not modified or tampered https://bigtechinfo.com/avast-firewall-review with during transmission or storage.

The process of encryption involves changing the information into a form that can only be read using a password or key. In most cases, the recipient can translate the encrypted data back into its original form. Modern encryption techniques employ algorithms that can scramble the original data into the ciphertext. Different algorithms and methods are used for this purpose which include transposition and substitution techniques. The Caesar cipher is a early example of a substitute cipher. Each letter is replaced by a different one at a set number of positions down the alphabet.

The encryption of data is often required to ensure compliance with the regulations set by a variety of organizations or standard bodies including the Fair Credit Reporting Act (FCRA) and other consumer protection laws. It is a critical security measure to shield sensitive information regarding a company, client or a patient from cyber-attacks. Retailers should, for example, protect credit card information and shipping information when they transfer data between networks or between systems. The encryption process can safeguard data stored on computers, USB devices and other hardware from theft either physically or virtually by hackers.

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