Encryption technology is a method used to protect information by converting it into a code that can only be read by someone who has the correct key or password. This process ensures that sensitive data, such as personal information or financial details, remains secure from unauthorized access. There are various types of encryption, including symmetric encryption, where the same key is used for both encoding and decoding, and asymmetric encryption, which uses a pair of keys—one public and one private. These techniques are widely used in applications like online banking and secure messaging to safeguard communication and data.