Electromagnetic induction is the process by which an electric current is generated in a conductor as it moves through a magnetic field or when the magnetic field around it changes. In cybersecurity, understanding electromagnetic induction is important because attackers can exploit unintended electromagnetic emissions from electronic devices to extract sensitive information. This phenomenon is the basis for certain types of side-channel attacks, where data can be intercepted without direct access to the system. Shielding and secure hardware design are used to mitigate these risks.