NFC is a technology that lets you use your phone as your wallet, and pay for things wirelessly at the checkout counter. It swaps data wirelessly across short distances. By simply placing your smart phone near a NFC reader, a transaction is made.
How NFC Works

Compare NFC to other wireless technologies

NFC-enabled phones will grow from just 7 million in 2011 to 203 million in 2015, an increase of 208%. While e-commerce sales in 2009 total $1.2 billion via mobile phones, by end of 2014, it is estimated to exceed $214 billion.
Top 10 Mobile Activities

1. Playing games
2. Instant messaging
3. Taking photos
4. GPS and location services
5. Mobile browsing
6. Listening to music
7. Responding to emails
8. Money transfers
9. Mobile health monitoring

How NFC will change our world

The NFC payment process is convenient, but it may lead to security and privacy leaks.