Which of the following is the reason of using Faraday cage?

DoS attacks are network-based volumetric or protocol exploitation attacks that are mitigated through network controls such as rate limiting and firewalls, not physical electromagnetic shielding.

Shoulder surfing is a physical visual eavesdropping technique countered by privacy screens or proper workstation positioning, not electromagnetic enclosures.

Mail bombing is an email-flooding attack addressed at the mail server or network level, and physical shielding has no effect on it.

Data emanation is the unintentional radiation of electromagnetic signals from electronic equipment that can be captured and decoded by an attacker - a threat addressed by the TEMPEST standard. A Faraday cage works by attenuating or completely blocking these electromagnetic fields within its conductive enclosure, ensuring signals cannot escape the protected area.