It turns out, that while SIM cards are encrypted, they can easily be breached with just a couple of text messages, and it apparently takes only a couple of minutes.

FreedomPop's newest promotion offers a free U.S. SIM card with unlimited free access to WhatsApp from over 30 countries around the world.

For just Re 1, new users can get a 30-day pack that includes 2GB of 4G data per day, unlimited voice calls, 100 SMS daily, and even a free 4G SIM card.

Forget pricey roaming fees or the hassle of getting a SIM card at the airport kiosk. Get fast and reliable mobile internet the moment you land.

Using foreign SIM cards is the cheapest and most hassle-free solution. In order to use a foreign SIM card in your phone, you'll need to get your phone "unlocked" by your mobile carrier.

Although there are about seven billion SIM cards in “active use,” Nohl estimates “as many as 750 million phones may be vulnerable to attacks.” ...