March 1, 2014 - Poloniex 97 BTC

Cordalo simplify writing Corda applications.

Bug in Polniex code.  Poloniex founder Tristan D’Agosta explained the problem on the BitcoinTalk forum

“The hacker discovered that if you place several withdrawals all in practically the same instant, they will get processed at more or less the same time. This will result in a negative balance, but valid insertions into the database, which then get picked up by the withdrawal daemon.” Source