02 May '13, 10pm

How porn invaded Bitcoin: Hackers are tinkering with a key part of the alternative currency's system.

The code on the left records a bitcoin transaction from July 2011. Converted into text, it generates a portrait of Federal Reserve Chairman Ben Bernanke. NEW YORK (CNNMoney) Here's a little-known quirk of cyber currency Bitcoin: There are coded messages hidden in the ledger that track bitcoin transactions. Most are innocuous, but this week, the discovery of a malicious transmission filled with porn links set the Bitcoin community abuzz. Bitcoin, a four-year-old digital currency developed by a hacker who still remains anonymous, is a favorite plaything of libertarians and cryptography geeks. It burst into the mainstream this year when investors took note of its wild price swings . One bitcoin is now worth around $112, down from a record high of $266 last month, but up from $5 a year ago. At the core of the bitcoin network is a database recording every single transaction. Bi...

Full article: http://money.cnn.com/2013/05/02/technology/security/bitco...

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