For what it's worth I would recommend some light reading on bitcoin and the corresponding blockchain technology since you mentioned about the chance of hacking. I am not vouching for BitDeal, rather just providing inputs about bitcoin.
BitCoin is nearly impossible to hack due to decentralized nature of validating and confirming the transaction. It is the most solid crypocurrency ever created and is the future. It is not tied to a specific market rather tied to pure supply and demand. No one organization can control or manipulate BitCoin unline USD or INR or any other currency for that matter.