www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
Business
Home / Business / Technology

What is bitcoin?

Xinhua | Updated: 2017-05-18 15:44

BEIJING — A large scale ransomware computer virus known as WannaCry broke out on May 12 to take hostage of computer files, affecting some 150 countries globally.

The ransomware has locked up their data with a message to demand a ransom payment of digital currency bitcoin worth from $300 to $600. The following is a brief introduction to bitcoin:

Bitcoin is a digital currency invented by Satoshi Nakamoto, the pseudonym of an unknown programmer or a group of programmers.

The digital payment system was released as open-source software in 2009. Thus bitcoins, basically lines of computer code, are not issued by a bank or a government.

The owners of bitcoins can use the digital currency to buy goods or services, or change into real currency, if people and businesses accept bitcoins for payments or exchange.

The value of bitcoins fluctuate swiftly. A year ago, one bitcoin was worth some $457, while it recently traded for $1,825, according to Coinbase, a company that helps users buy and sell bitcoins.

Bitcoin is pseudonymous, which means that funds are not tied to real-world entities but rather bitcoin addresses.

The digital payment system is peer-to-peer and transactions take place between users directly, without an intermediary and can be made anonymously. That's why cyber attackers prefer to choose the cryptocurrency for hacked computer users to pay the ransom.

The transactions are anonymous but traceable, because all the transactions are stored in databases called blockchains and people can monitor bitcoin addresses and see how the "money" moves.

Less than $70,000 has been paid in the recent ransomware cyberattack, White House Homeland Security adviser Tom Bossert told a daily briefing on Monday.

Most Viewed in 24 Hours
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 久久高清免费 | 欧美亚洲国产精品 | 国产一区二区高清在线 | 免费人欧美成又黄又爽的视频 | 久久综合给会久久狠狠狠 | 日韩视频免费一区二区三区 | 成人午夜看片在线观看 | 久久久www免费看片 久久久www免费人成看片 | 亚洲欧美日韩国产综合 | 国模偷拍在线观看免费视频 | 一级成人黄色片 | 东莞a级毛片 | 一级毛片免费完整视频 | 天天摸天天爽视频69视频 | 欧美一级看片 | 国产成人亚洲精品一区二区在线看 | 亚洲国产高清人在线 | 成年人视频在线免费播放 | 成人男女网18免费91 | 国产在线精品二区韩国演艺界 | 欧美一级视屏 | 亚洲 自拍 另类 欧美 综合 | 欧美成人三级 | www夜色| 手机看片日韩国产 | 三级网址在线 | 狠狠综合久久久久综合 | 中文一区在线观看 | 中文字幕巨乱亚洲 | 在线精品亚洲欧洲第一页 | 午夜福利国产一级毛片 | 99视频免费在线 | 久久99精品久久久久久三级 | 国模午夜写真福利视频在线 | 成人欧美精品大91在线 | 97在线观看免费版 | 91热久久免费频精品动漫99 | 中文字幕亚洲欧美 | 久久中文亚洲国产 | 久久久免费精品视频 | 国产丝袜美腿高跟白浆 |