John used to work as a Network Administrator for We-are-secure Inc. Now he has resigned from the company for personal reasons. He wants to send out some secret information of the company. To do so…

Steganography is the practice of concealing data within a non-secret carrier file, such as an image, audio, or video file, so that the existence of the hidden message is not apparent. By embedding the secret file inside a JPEG image using a tool like image hide, John exploits the fact that mail servers inspect content type and metadata rather than scanning binary data embedded within image pixels. This allows the exfiltration to bypass signature-based email filters.

Email spoofing involves forging the sender address of an email to impersonate another user or domain, which is not described in this scenario.

Social engineering manipulates people psychologically to divulge information or perform actions, not applicable here since John is using a technical concealment method.

Web ripping refers to copying an entire website's content for offline use, which has no relation to hiding data inside an image file.