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区块链国际资讯

爱沙尼亚将推出全球最安全的区块链医保记录

如果黑客不仅仅掌握了你的财务数据,并且还在你的债务栏增加了100万美元,你该怎么办呢?

别不当回事儿,如果是1000万美元呢?

Guardtime的Mike Gault告诉我们,这种情况是有可能发生的。黑客们不仅可能攻击财务数据,还有可能掌握医疗记录、军事记录或者其他敏感信息。Guardtime正在协助爱沙尼亚政府将居民的医疗记录转移到基于区块链技术的数据库中,而这个数据库无人可破。

当金融机构致力于使用区块链技术——即支持比特币的技术,来解放金融世界的时候,人们发现区块链技术也可以被用以保护个人数据安全。区块链即电子分类账,得益于一些计算机技术,账户中的每一次变化都不可删除。

也就是说,区块链可以被用作健康数据的数据库。当人们的健康数据被评估,这个事件就会被记录在区块链中,同时账户中的任何改变或者添加的东西,都会被记录。这样的话,人们的医疗数据就无法被随意篡改。没有人可以不留痕迹的改变账户中的信息。最后,人们可以通过公告牌看到他们自己的医疗记录和记录中的任何变化。

爱沙尼亚拥有上千种数字服务。她是一个在数字技术上十分先进的国家。近几年来,爱沙尼亚人都可以在线浏览其医疗记录和其他信息,他们不仅可以看到有谁看过他们的信息,还可以授权特定人(比如医疗专家)浏览其信息。而区块链技术使得黑客完全不能不留痕迹地侵入或篡改数据,一旦有数据泄露发生,还能提供实时警报。

而传统的防火墙技术,可能会在入侵发生很长一段时间之后才能发现。2013年被黑客入侵时,Target居然是在被黑一个月之后才发现。美国国家安全局至今也不知道Edward Snowden侵入了什么数据,而如果使用区块链安全技术,Edward对数据的入侵根本不可能完成。

保存重要数据的原始性——保证其不被篡改,一直以来都是政府工作的重点。美国一些高级情报官员最近公开表示对外来的担心,将来黑客不仅会窃取政府数据,还会通过对数据的操纵来削弱人们对政府的信任和政府的决策能力。

根据一家媒体3月3日的报道,爱沙尼亚将成为世界上第一个如此使用区块链技术的国家。其他国家也正摩拳擦掌准备陆续应用区块链技术。2016年一月,英国政府的一份工作报告中建议政府开始测试区块链技术。其他国家,包括日本和俄罗斯也在逐步学习区块链技术。

Instead of hackers merely looking at your financial data, what if they could add a million dollars to your debt?

What about $10 million?

It’s possible, Guardtime’s Mike Gault told Quartz. And not just with financial data, but with health-care records, military information, and other sensitive data. Guardtime is helping Estonia move its citizens’ health records to a database, based on blockchain technology, that nobody can mess with.

While financial institutions rave about the potential for blockchain—the technology that powers bitcoin—as a way to revolutionize the financial world, it can also help keep private data secure. A blockchain is essentially a digital ledger that, thanks to some computational tricks, records every change made to it indelibly.

This means it can act as a database for health data. Whenever someone’s health records are accessed, that “event” is recorded on the blockchain, alongside what information was changed or added, Gault said. That way, the information remains both secure and tamper-proof; nobody can change it without leaving traces. Eventually, there will be a dashboard for the public to see their own health records and any changes made to them.

Estonia, a country that has over 1,000 digital services, is a digitally advanced society. For several years already, people have been able to access their medical records and other data online, see who else has looked at them, and grant permission to certain people (such as medical specialists) to see them. But a blockchain will make it impossible for hackers to hide their tracks if they access or change data during an attack, and provide real-time alerts if a data breach occurs.

With traditional protection systems like firewalls, an attack may go undetected for a long time. When Target was hacked in 2013, it took the company a month to find out. The US National Security Agency still has not figured out what information Edward Snowden accessed; blockchain-based security could have made his theft of data impossible without detection.

Maintaining the integrity of important data—making sure that it can’t be altered—is a key concern for governments. Some of the US’s top intelligence officials have spoken up recently about the worry that in future, hackers won’t just steal government data but manipulate it to sow distrust and cripple decision-making.

Estonia will be the first country to use blockchain this way, according to a press release issued today (March 3). Other governments are slowly warming up to blockchain technology. In Jan. 2016, a report from the UK Government Office of Science recommended the government start testing distributed-ledger technology (another name for it). Other countries, like Japan and Russia, are learning more about it too.


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