A cryptocurrency is a medium of exchange using cryptography to secure the transactions and to control the creation of additional units of the currency. Cryptocurrencies are a subset of alternative currencies, called altcoins, or specifically of digital currencies.

Bitcoin became the first decentralized cryptocurrency in 2009. Since then, numerous cryptocurrencies have been created. These are frequently called altcoins, as a blend of bitcoin alternative. The most popular altcoins now (August 2016) – Ethereum, Steem, Ripple, Ethereum Classic, Litecoin, Dash, Dogecoin.

Cryptocurrencies use decentralized control as opposed to centralized electronic money/centralized banking systems. The decentralized control is related to the use of bitcoin’s blockchain transaction database in the role of a distributed ledger.

BitInvest Unveils Coincard, a Prepaid MasterCard for Bitcoin Fans
April 10th, 2014

Brazilian Bitcoincompany Bitinvest has introduced a prepaid MasterCard that can be loaded with Bitcoins and used throughout Brazil.

Bitcoin Price Drops 10% After Chinese Exchanges Halt Bank Deposits
April 10th, 2014

Bad news for the virtual currency in China – the Bitcoin price crashes as Chinese government stops Bank deposits.

U.S. Congressman Steve Stockman to Submit Bitcoin Tax Bill
April 9th, 2014

Representative of Texas, Steve Stockman, submitted a new bill, the ‘Virtual Currency Tax Reform Act,’ that would regulate the bitcoin sale transactions.

eBay Adds New ‘Virtual Currency’ Category to U.S. Site
April 3rd, 2014

eBay added virtual currency section to its website in the U.S.

Chicago Sun-Times Becomes First Major U.S. Newspaper to Accept Bitcoin Payments
April 3rd, 2014

After months of successful bitcoin paywall trial earlier this year, the Chicago Sun-Times announced its partnership with San Francisco-based bitcoin startup Coinbase to accept Bitcoins as payment for subscription.

Chinese Bitcoin Exchanges OKCoin and FXBTC Report New Deposit Freezes
April 2nd, 2014

Chinese exchanges were notified that their certain accounts will be terminated.

Coinbase Denies Data Breach, Says Email and Name Disclosure is a ‘Feature’
April 1st, 2014

Bitcoin wallet company Coinbase has addressed the security issue concerning the alleged data breach, after its customers’ emails and usernames showed up online.

Meet Hullcoin: The World’s First Local Government Cryptocurrency
March 30th, 2014

The world’s first local digital currency to fight society-related problems such as hunger, poverty, shelter, was unveiled in UK early this month.

Mt. Gox Allegedly Used Customers’ Money Long Before Crisis
March 30th, 2014

Bitcoin exchange Mt. Gox allegedly spent money from its clients’ deposits on operating expenses including extravagances as early as 2 years before it went bankrupt, according to three people who participated in the discussion.

Reddit CEO Yishan Wong Thinks the World of Dogecoin, Slams ‘Crazy’ Bitcoiners
March 28th, 2014

On Quora, Reddit CEO Yishan Wong expressed his ideas about Bitcoin community, its users bigotry to the currency systems, and praised the increasingly popular Dogecoin.

Malware Called ‘Coinkrypt’ Mines Litecoin, Dogecoin on Android Phones
March 27th, 2014

The new mobile malware called ‘CoinKrypt’ infects Google Android devices to mine digital currency with overusing processing power.

Gyft Added Walmart to the List of Merchats that Support Bitcoin Giftcards
March 25th, 2014

Popular service of purchasing gift cards, Gyft, made a deal with Walmart. Now Walmart accepts bitcoin payments via giftcards.

Iceland Launches a ‘National’ Cryptocurrency Called Auroracoin Airdrop
March 25th, 2014

Iceland national bank and government create a cryptocurrency to solve financial problems.