However, some new research from Security Research Labs in Berlin reveals that some phones' SIM cards are suceptible to attack. Hackers can send a special type of SMS message (similar to a text ...

The ghost SIM card then plugs into your phone's SIM card slot and acts as an adaptor. In order to change between the SIM cards you have to turn the phone off and then on again.

As many as 750 million mobile phones could be vulnerable to an encryption flaw on some types of SIM cards, a German cryptographer and researcher warned over the weekend.

QUICK ANSWER To activate a T-Mobile SIM card, insert it into your phone while it is powered off. Turn on your phone and follow the prompts on your screen to log into your T-Mobile account. You may ...

You can check if your device is locked through the IMEI information, or by switching out the SIM card, or by checking via the ...

Jethro Mobile USA Prepaid SIM Card for Cell Phones, Unlimited Talk, Text & 5GB of Data for 30 Days, Mobile Hot Spot, International Calling to Canada, Mexico & 80+ Countries, Easy Activation 22 ratings ...

Sure, apps, a media player, and a good-quality Web browser are great, but what I really want is a good dual-SIM card phone. And fortunately for me, the 2013 Mobile World Congress didn't disappoint.

If someone can convince your mobile carrier or a third-party phone store that they are you and that they have a new SIM card that they want to activate, they can essentially take over your smartphone.

Travel SIM cards for mobile phones: Are they worth getting for overseas? Michael Gebicki Updated August 25, 2015 — 9.26amfirst published August 21, 2015 — 12.30pm Normal text size Larger text size ...

From Ibadan, Abuja, Lagos, Kano and Kontogora, pre-registered SIM cards for the mobile networks were still on sale, especially through decentralised outlets. An Abuja based young techpreneur said ...

Whether it's tapping into an international cell phone plans, getting a local SIM or eSIM card, or maximizing the free-Wifi, here are NerdWallet's tips on the best ways to use your cell phone while ...