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黑客奇袭币安,中国币王被割韭菜,全球比特币一夜损失170亿美元

2018-3-9 00:22| 投稿: xiaotiger |来自: 互联网

摘要: 文|AI财经社 徐鑫编|赵雯昨天,福布斯数字货币富豪榜Top10中唯一的中国人赵长鹏,度过了难熬的一夜。他是全球第二大虚拟货币交易所——币安的创始人,但在昨夜,币安发生了一场刷新所有人认知的黑客攻击。币安上大量 ...

文|AI财经社 徐鑫

编|赵雯

昨天,福布斯数字货币富豪榜Top10中唯一的中国人赵长鹏,度过了难熬的一夜。

他是全球第二大虚拟货币交易所——币安的创始人,但在昨夜,币安发生了一场刷新所有人认知的黑客攻击。币安上大量用户账户被黑。

让大家出乎意料的是,黑客进入系统后,并未偷走账户里的虚拟货币,而是通过控制被黑账户,来操纵币价。一些币种被抛售,币价下跌;另一些币种价格被拉升,其中一种叫VIA的虚拟货币,几小时里暴涨了110倍。

在涨跌之间,黑客又通过在其他平台做空单方式,轻易完成了收割。受此事件影响,比特币大跌10%。以全球总计1700万个比特币计算,比特币一夜丢了170亿美元。

虽然今日币安回应暂停提币,稳定人心,但对不少人而言,事件中最受关注的,是黑客的收割方式。黑客利用大交易所币价涨跌对其他交易所的影响,再在其他数以千计的交易所做空,完成了收割。业内从业者评价,“这是真正的去中心化攻击”。

AI财经社获悉,今天上午,币安联合创始人何一在一个群里委屈地称:“在整个交易平台出现的历史上,还是第一次一个平台发生大规模攻击,因为币安的安全壁垒高,一个币没丢却被黑出翔的。”

在7*24小时运营的虚拟货币交易所中,传统金融的杠杆、做空、套利等玩法都会被平移过来。“密码学安全不代表真的安全。”一位业内从业者对AI财经社说。

中国币王、币安创始人赵长鹏经历了难熬的一夜

为什么会是交易所?

大量黑客攻击都发生在虚拟货币交易所里。

今年1月25日,日本最大的比特币交易所Coincheck遭到黑客攻击,丢失了市值多达5.3亿美元的数字货币。黑客的作案手法是将交易所里属于客户的数字货币转移至另一个账户。

去年12月,韩国的交易所Youbit被黑客攻击,这是它在一年内遭受的第二次攻击,导致近17%的资产被盗。在上一次攻击中,它已丢失4000个比特币。12月的这次攻击让这家交易所直接关门大吉。

而早在2014年,日本的Mt. Gox交易所也曾有85万个比特币被盗,其中交易所自有10万个,其余75万个是客户所有,最终这家交易所也被迫申请破产。

为什么交易所如此容易受到攻击?

交易所集中了大量的账号和数字资产 ,自然是黑客攻击的首选。

“攻击手法就跟网站被攻击是一样的。”区块链从业者李宁告诉AI财经社,“交易所是中心化的,有服务器有账号。这些服务器上各种软件,都有可能存在被利用的漏洞。”

黑客攻击这些交易所还有现成的工具。“黑客可以直接撞库,获得大量用户账号密码。”一位安全界人士对AI财经社介绍,“如果掌握一些底层漏洞,也可以拿下各种服务器,掌握大量的用户账号密码。这些库在黑产界到处都有,是现成的。以前很多大公司都被爆过大规模数据泄漏。”

现在也有交易所在探索去中心化之路,但一切还在初期建设中。“还没有看到成熟的去中心化交易所,需要解决高频交易问题。”从业者对AI财经社说。这是底层区块链技术一直面临的性能挑战。

千疮百孔的钱包

在日本最大的比特币交易所Coincheck被攻击的事件中,Coincheck方面表示,所有被偷的数字货币都被放在了联网的钱包里。

无独有偶,去年12月被攻击的韩国Youbit交易所,也是把数字货币都存放在了联网的热钱包中。而此前有媒体报道,美国主要数字货币交易所Coinbase表示,其网站上98%的数字货币都放在线下,称之为“冷”储存钱包。

冷热钱包最大的区分在于是否联网。冷钱包是不连网的钱包,也叫离线钱包;热钱包是保持联网上线的钱包,也称在线钱包。一般而言,冷钱包不联网会比热钱包更安全。

由于之前的教训,如今发币平台和交易所都对专业、安全的离线钱包有更迫切的需求。不过,即使是冷钱包也依然有风险,数字资产最好能分散存储。但分散存储的问题在于效率降低、成本提升。而一些交易所出于流通和成本考虑,经常会集中存放,这自然会带来风险。

“交易所的资产交易记录都是可查的,很容易找到这些大额资产地址。”李宁告诉AI财经社,“更为严峻的是,这种交易所,在安全意识上就是有问题的。”币圈导师李笑来前天接受媒体采访时也认同这一点。

李笑来甚至表示过对比特币私钥的担心。他认为除了交易所的问题,比特币私钥本身也有被破解的可能性。

“很多人不知道,比特币私钥其实是相当于公开的,虽然很低很低的概率才可能被破解。但你稍微有点数学常识就知道,万分之一的概率,并不意味着非要试过一万次才可能出现……那么多的价值,放在一个地址里,我是不敢的。别说现在不敢,2011 年就不敢。后来 2013 年给赵东投资的时候,我是用三个 2011 年的老钱包拼起来,构成对他的投资额的。”

防不胜防的割韭菜手法

在昨晚币安被攻击之后,黑客的套利方式让人对虚货币产生了更多质疑。

目前,虚拟货币交易所是7*24小时运营,传统金融的杠杆、做空、套利等玩法都会平移过来。“而且,现有交易所没有监管,全看交易所自己的能力。币丢了也没有法律保障。”行业内人士对AI财经社表示。

做多做空金融交易工具的出现,让币价大幅度波动成了一些做庄做局者乐见的局面。这可能会让币圈出现一批不论涨跌都能收割的人,也让普通参与者面临更大的被宰割风险。

“数字货币容易被操纵是个明显的事实,在传统对冲基金中都被玩烂了的手法,可能会在这里一一上演。”币圈一位不愿具名的人说。

此次黑客的操纵可能也会引发效仿。新的收割手段不再需要盗取、转移数字货币,只需要拉动币价产生高位震荡,在多个平台下注做空单、做多单即可。

在虚拟货币交易尚未迎来去中心化的时刻,收割套利者已经完成了去中心化之路。

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}, shareInfo: { shareUrl: https://m.toutiao.com/item/6530488933241848334/, abstract: 文|AI财经社徐鑫编|赵雯昨天,福布斯数字货币富豪榜Top10中唯一的中国人赵长鹏,度过了难熬的一夜。他是全球第二大虚拟货币交易所——币安的创始人,但在昨夜,币安发生了一场刷新所有人认知的黑客攻击。
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