Some Straight Talk wireless phones have SIM cards. If your Straight Talk phone has a SIM card, then you agree to safeguard your SIM card and not to allow any unauthorized person to use your SIM card. You agree not to, and not to allow any other person to, directly or indirectly alter, bypass, copy, deactivate, remove, reverse-engineer or otherwise circumvent or reproduce the encoded information stored on, or the encryption mechanisms of, your SIM card. You may not remove your SIM card or use the SIM card on any other wireless phone.
Any violation of the restrictions on the use of your SIM card that are contained in this section may result in the immediate termination of your service without notice. The Carriers, TracFone Wireless, or its service providers, may, from time to time, remotely update or change the encoded information on your SIM card.