30 Mar '15, 7am

Bitcoin's blockchain could be abused to store malware and illicit content:

The blockchain, the public ledger of all Bitcoin transactions, has all kinds of good uses outside of providing stability for the world’s most popular cryptocurrency, from decentralised data storage to super-flexible email . But it can also be put to malicious use. According to Interpol’s Christian Karam, speaking from the Black Hat Asia conference, it could be abused to store malware control mechanisms or provide access to illicit content such as child abuse images that would be extremely difficult to take down. To prove the point, Kaspersky researcher Vitaly Kamluk, who is currently on secondment at Interpol, created a proof of concept software, which had the potential to become malware, that could take in information from a hacker-controlled Bitcoin address (the unique identifier of owners of cryptocurrency) and a transaction hash (an encrypted representation of a transa...

Full article: http://www.forbes.com/sites/thomasbrewster/2015/03/27/bit...

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