to the CEO of the company. To secure these messages, she uses a technique of hiding a secret message within an ordinary message. The technique provides 'security through obscurity'. What technique…

Steganography hides information within an innocuous carrier - such as an image, audio file, or ordinary text message - so that a casual observer has no indication that any secret communication is occurring. Unlike encryption, which makes data unreadable but signals that something secret is present, steganography conceals both the content and the existence of the message. Maria's described technique of embedding a secret message within an ordinary message is the textbook definition of steganography.

Public-key cryptography uses a mathematically linked key pair to encrypt and decrypt data, which secures content but makes it obvious that an encrypted - and therefore secret - message exists.

The RSA algorithm is a specific asymmetric encryption algorithm used for key exchange and digital signatures; it transforms data into ciphertext but does not hide the message within ordinary content.

Encryption converts plaintext into an unreadable ciphertext to prevent unauthorized access, but it does not conceal the existence of the communication the way steganography does.