Protection from Electronic Pickpockets

You can never be too careful at this time and age. Unscrupulous people multiply like mushrooms and their ingenuity gets more and more clever each time. Who would have thought that they could copy your credit card or debit card information without even getting hold of them? With the gadgets they invent, how can we ever protect ourselves from electronic pickpockets or identity theft? I saw this ad online about rfid wallet that serves as a security sleeve that protects credit card numbers from being stolen, what a great invention.