Digital currency of its creators. "Forbes" writer Tim Worstall has written that the value of bitcoin is largely derived from speculative trading. Bitcoin has also been criticised for its energy inefficient SHA-256-based proof of work. Digital currency Digital currency (digital money, electronic money or electronic currency) is a type of currency available in digital form (in contrast to physical, such as banknotes and coins). It exhibits properties similar to physical currencies, but can allow for instantaneous transactions and borderless transfer-of-ownership. Examples include virtual currencies and cryptocurrencies and central bank issued money accounted for in a computer database (including digital base money). Like
Digital gold currency but PX-Gold never came into existence. Account holders never recovered their funds. Digital gold systems are completely dependent on electronic storage and transmission of account ownership information. Therefore, the security of a given digital currency account is dependent upon the security of the issuer as well as the security of the accountholder's computer. While the digital gold issuers employ data security experts to protect their systems, the average accountholder's computer is poorly protected against malware (trojans, worms and viruses) that can be used to intercept information used to access the user's DGC account. Therefore, the most common attacks on digital