Bitcoin is a digital currency which is getting more and more popular
all over the world. It works as a P2P network that allows you to make transactions without any intermediate
authority nor paying any fees. http://adf.ly/18UWL3
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Who can use it?
Anybody can create a wallet for free, and making a transaction is as easy as sending money to the address of another wallet.
Is it safe?
The security of bitcoin relies on the block chain, which is a shared public ledger where all confirmed transactions are included, and uses cryptography to protect it and prevent any kind of fraud as any wallet balance can be confirmed by checking all transactions from the block chain.