A helpdesk technician is briefed on the risk of malicious charging cables. A colleague mentions the O.MG cable. What physical security control should the technician recommend for employees who must charge devices in public places or untrusted locations?

• A.Carry a shielded pouch, keeping the handset inside it while it charges (the fabric blocks radio emissions across every band), preventing wireless exfiltration during the session: the control addresses the data path an implant would use in a public place
• B.Switch the handset into airplane mode before connecting to any public port (the radios are all disabled by the toggle), cutting every route the implant could take: the control removes the network the payload needs to reach its operator in the terminal
• C.Use a USB data blocker ('charge-only' adapter) that physically disconnects the USB data pins, passing only the power pins through; this prevents any data communication over the cable regardless of whether it is malicious or a rogue port