Bitcoin

Microsoft co-founder Bill Gates expresses concerns about bitcoin volatility as prices plummet.

Security expert claims to have found proof Islamic State uses dark web and bitcoin to fundraise.

Bitcoin has seen its price fall amid further woes for the cloud-mining industry.

Gulnar Hasnain from Green Party becomes first UK political candidate to accept bitcoin.

Tyler and Cameron Winklevoss believe bitcoin has the potential to reach a $1 trillion market cap.

Isohunt offers $100,000 bitcoin bounty to encourage open-source development of The Old Pirate Bay.

Bitcoin price skyrockets ahead of Coinbase exchange opening but tumbles shortly afterwards.

Opening of first licensed US bitcoin exchange causes cryptocurrency's price to return above $300.

Bitcoin, litecoin and dogecoin stabilise, rounding off positive week for cryptocurrency markets.

First trailer released for Deep Web, the crowd-funded documentary about Silk Road, bitcoin and the dark web.

Robert Faiella sentenced to four years in connection with Silk Road and Mastercoin rebrands.

Bitcoin has continued its recent run of stability, while darkcoin rises.

Cryptocurrency markets remain stable after heavy losses, as KPMG highlights both threats and opportunities of bitcoin.

Prosecutions set about using the complicated cryptocurrency as a powerful tool in the Silk Road trial.

In submission to Treasury, British Bankers' Association said bitcoin would be risky for customers and the financial system.

Bitcoin stabilises, while IBM and Samsung work on blockchain tech and tipping comes to Facebook.

Wallet in cold storage could leak its private keys to hacker, who could then reverse-engineer private keys.

The e-commerce platform hits 50,000 service providers and $350m project value to date.

Price of bitcoin remains relatively stable, while other cryptocurrencies experience more losses.

During Ross Ulbricht's trial, the defence alleged that Karpeles was running the online black market Silk Road.

Mark Karpeles, former CEO of failed bitcoin exchange Mt Gox, was thought to be Dread Pirate Roberts, owner of SIlk Road, US agents reveal.

The price of bitcoin has rebounded above $200, sparking a market-wide recovery.

Undercover government agent was paid $1,000 a week by Silk Road for admin work while he tracked down Dread Pirate Roberts

Bitcoin has led a market-wide crash that saw litecoin, dogecoin and other major altcoins drop by 25%.

BTC/USD was down more than 30% on the day before paring a part of the losses.

The price of bitcoin has fallen as low as $170, losing 25% of its value in the space of 24 hours.

Bitcoin falls to lowest price since November 2013, causing miners to temporarily suspend services.

Price of bitcoin falls 10% in 24 hours to take cryptocurrency to lowest level since November 2013.

Bitcoin exchange Bitstamp is back online and darkcoin developer Evan Duffield wins annual award.

Illegal drugs and fake ID site Silk Road Reloaded now accepts more cryptocurrencies and ditches Tor for more secure I2P network.