What is Encryption?

Encryption is the process of converting readable data, known as plaintext, into an encoded format called ciphertext. This transformation uses algorithms and encryption keys to ensure that only authorized parties can access the original information, thereby maintaining data confidentiality and integrity.

For example, when you use a secure messaging app, your messages are encrypted before transmission, making them unreadable to anyone intercepting the communication. Only the intended recipient, possessing the correct decryption key, can decode and read the message. Encryption is fundamental in safeguarding sensitive information across various domains, including online banking, email communications, and data storage, protecting against unauthorized access and cyber threats.