On 13 February 2014, Defcon announced that Silk Road 2.0's escrow accounts had been compromised through a vulnerability in Bitcoin's protocol called "transaction malleability".[89] While the site remained online, all the bitcoins in its escrow accounts, valued at $2.7 million, were reported stolen.[89] It was later reported that the vulnerability was in the site's "Refresh Deposits" function, and that the Silk Road administrators had used their commissions on sales since 15 February to refund users who lost money, with 50 percent of the hack victims being completely repaid as of 8 April.[90]