like almost all technologies you can use them for good or for evil.
right now crypto-currencies as bitcoins are imho mostly associated with the „dark-net“ or became famous on TV in association with „Silkroad Market Place“ were mostly illegal stuff was traded.
So if people want to do stupid things with a knife – who is there to keep them from burning their hands? only their own consciousness, awareness, moral, reason, intelligence and maybe the state and laws.
But there is more potential behind the BlockChainCurrency system. It could be used as „alternative“ currency for Dollar and Euro and there is were the shit get’s thick, because it directly attacks the power of central banks (run by private individuals) to be the only legal issuer of legal tender (colorful printed cotton-paper backed by nothing but the trust of people in it).
and there again comes the critical part: Trust.
If the BitCoin-Software running on many many servers gets hacked – it is possible to compromise all servers running that software – lowering people’s trust in the system.
And you can bet on that, that NSA and Co. (labeled by Snowden as the „biggest hacking organisation of the planet“ will try to do exactly that.
Trust is the „real currencies“ issued by central banks – the only reason why things as the Dollar or the Euro work – is people trust in it – it’s not backed by anything (Gold, Oil, Weed, Grain, nothing).
Whenever an part of the BitCoin-System is hacked – it will lower the prices for BitCoins and also the trust of people into that new fancy system (see MtGox).
Bitcoin Core ensures every block and transaction it accepts is valid, increasing not only your security but also helping prevent miners and banks from taking control of Bitcoin.
Bitcoin Core provides exclusive privacy features that can make it hard for anyone to link you to your transactions.
Warning: Better Security Has Costs
Bitcoin Core uses more resources than other wallets, but it’s still convenient to run on most computers and Internet connections.
A Better User Interface
Bitcoin Core wallet has features most other wallets don’t have. But if you don’t need them, you can use several other wallets on top of Bitcoin Core without losing Bitcoin Core’s security and privacy benefits.
Support The Network
Bitcoin Core helps support other peers. This isn’t as useful as helping to keep Bitcoin decentralized, but it’s an easy way for broadband users to contribute to less well-connected users.
Backup Mirror: Git Hup Downloaded: bitcoin-master_Core 0.13.99.src.zip