Encryption is the process of encoding information in such a way that only authorized parties can access it. To do this, encryption uses an encryption key to translate electronic data into code. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it.
Encoded information, called ciphertext, prevents unauthorized access, and it is a commonly used security measure to protect information and applications, whether stored on computer systems or transferred over the Internet. Even if data leaks or a system is breached, the encoded data will be unreadable. Typically, encryption techniques include file encryption, drive encryption, email encryption, password encryption, and can be applied to other data transferred over the Internet and wireless networks as well.