Roaming in cybersecurity and telecommunications refers to the ability of a mobile device to access network services - such as calls, texts, and data - outside its home network, often when traveling internationally. When a user is outside their service provider’s coverage area, their device connects to a partner network, enabling continued communication. Roaming can introduce cybersecurity risks, as data may pass through untrusted networks, increasing the risk of interception or unauthorized access. Security best practices while roaming include using VPNs, disabling automatic connections to open Wi-Fi networks, and being cautious with sensitive transactions. Roaming charges may also apply, depending on the user’s mobile plan and agreements between operators.