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.A. Use a Faraday bag while charging to prevent wireless data exfiltration
• B.B. 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
• C.C. Only charge using Apple-certified MFi cables to ensure they contain no hidden electronics
• D.D. Enable Airplane Mode before connecting to any public USB port to disable wireless radios that could leak data