{"id":29689,"date":"2015-07-01T12:52:45","date_gmt":"2015-07-01T19:52:45","guid":{"rendered":"https:\/\/www.casino.org\/news\/?p=29689"},"modified":"2015-07-01T14:15:44","modified_gmt":"2015-07-01T21:15:44","slug":"primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw","status":"publish","type":"post","link":"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/","title":{"rendered":"Primedice.com Loses Over $1 Million to Player Exploiting Coding Flaw"},"content":{"rendered":"
\"Prime
Primedice.com, which lost over $1 million in bitcoin to a scammer who was able to manipulate its random number generator. (Image:themerkle.com)<\/figcaption><\/figure>\n

<\/i>Bitcoin<\/a> gaming operator Primedice.com, which claims to be the \u201cnumber one bitcoin gaming operator and casino,\u201d has admitted that it was fleeced out of over $1 million worth of bitcoin by a gambler who was able to exploit a flaw in the website\u2019s coding.<\/p>\n

The revelation was made by an unnamed member of the Primedice team, who posted under the name \u201cStunna\u201d on the blog-publishing platform Medium.com.<\/p>\n

\u201cShortly after the launch of the third version of\u00a0Primedice, our team faced an adversary that challenged the existence of our website,\u201d explained Stunna.<\/p>\n

Stunna described how, last August, a player appeared with the username \u2018Hufflepuff\u2019 who began spending big, and winning. Hufflepuff was betting up to $8,000 worth of bitcoin at a time for hours on end and was somehow managing to defeat the house edge of 1 percent.<\/p>\n

\u201cWe were highly skeptical of his winnings and were forced to hold his cashouts time and time again to investigate and each time our developers could not find any wrong-doing,\u201d said Stunna.<\/p>\n

\u201cWe couldn\u2019t justify greatly delaying his withdrawals when there was no evidence he was cheating. There was also strong incentive for us to promptly pay him, so he\u2019d keep playing. We heavily explored what we thought was every possibility, ran simulations and did the math and came to the conclusion that he was just incredibly lucky.\u201d<\/p>\n

Too Little, Too Late<\/b><\/h2>\n

By the time Primedice figured out what was going on, it was too late: the player had withdrawn his $1 million. It seems Hufflepuff had figured out a way to disrupt the site\u2019s random number generator. Stunna explains:<\/p>\n

\u201cTo understand how Hufflepuff beat our system, one must understand how our provably fair system (RNG) works. A user is shown an encrypted random value (the server seed) before they bet and they must also submit their own random value (the client seed). These two random values are combined and used to determine win or lose. The random encrypted random value used for the bet then is shown to the user after the bet so that they can be guaranteed that their bet is not rigged.”<\/p>\n

\u201cPart of the functionality of our site is that we have to give out decrypted server seeds (to assure users no bet manipulation has occurred) and put a new random seed in place, essentially trashing the old revealed seed. Hufflepuff found a way to \u201cconfuse\u201d our server, and made it give out a decrypted server seed that was also an active seed.\u201d<\/strong><\/p><\/blockquote>\n

\u201cYour Demands are Laughable\u201d<\/b><\/h2>\n

The result of this was that Hufflepuff knew all the information required to corroborate the outcomes of his bets. \u201cHe knew whether he would win or lose, and could wager accordingly,\u201d said Stunna.<\/p>\n

Primedice contacted Hufflepuff to inform him that his ruse had been exposed and asked that he return the money he won by deception.<\/p>\n

The cackling Bond villain\u2019s response is chilling:<\/p>\n

\u201cYour offer is declined. Your demands are laughable,\u201d scoffed Hufflepuff. \u201cI\u2019m happy to walk away and leave you be, but if you\u2019re going to take this further, then so will I. I don\u2019t think you want this to go further. I actually enjoy this shit. Your move. Oh, and by the way, there are some pending withdrawals that you need to process.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

Bitcoin gaming operator Primedice.com, which claims to be the \u201cnumber one bitcoin gaming operator and casino,\u201d has admitted that it was fleeced out of over $1 million worth of bitcoin by a gambler who was able to exploit a flaw in the website\u2019s coding. The revelation was made by an unnamed member of the Primedice […]<\/p>\n","protected":false},"author":42,"featured_media":29690,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21,10,19],"tags":[],"acf":[],"yoast_head":"\nPrimedice.com Loses Over $1 Million to Player Exploiting Coding Flaw<\/title>\n<meta name=\"description\" content=\"Bitcoin operator becomes the $1 million victim of a very clever scammer\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Primedice.com Loses Over $1 Million to Player Exploiting Coding Flaw\" \/>\n<meta property=\"og:description\" content=\"Bitcoin operator becomes the $1 million victim of a very clever scammer\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/\" \/>\n<meta property=\"og:site_name\" content=\"Casino.org\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Casino.OrgNews\" \/>\n<meta property=\"article:published_time\" content=\"2015-07-01T19:52:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-07-01T21:15:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.casino.org\/news\/wp-content\/uploads\/2015\/07\/03cf34335dd9ef4ba291db3ef235d6e3.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"256\" \/>\n\t<meta property=\"og:image:height\" content=\"256\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Casino.org Staff Writer\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Casino_Org\" \/>\n<meta name=\"twitter:site\" content=\"@Casino_Org\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Casino.org Staff Writer\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/\",\"url\":\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/\",\"name\":\"Primedice.com Loses Over $1 Million to Player Exploiting Coding Flaw\",\"isPartOf\":{\"@id\":\"https:\/\/www.casino.org\/news\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.casino.org\/news\/wp-content\/uploads\/2015\/07\/03cf34335dd9ef4ba291db3ef235d6e3.jpeg\",\"datePublished\":\"2015-07-01T19:52:45+00:00\",\"dateModified\":\"2015-07-01T21:15:44+00:00\",\"author\":{\"@id\":\"https:\/\/www.casino.org\/news\/#\/schema\/person\/8c48bf89dc86da77b4d856c7b3b78d77\"},\"description\":\"Bitcoin operator becomes the $1 million victim of a very clever scammer\",\"breadcrumb\":{\"@id\":\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.casino.org\/news\/primedice-com-loses-over-1-million-to-player-exploiting-coding-flaw\/#primaryimage\",\"url\":\"https:\/\/www.casino.org\/news\/wp-content\/uploads\/2015\/07\/03cf34335dd9ef4ba291db3ef235d6e3.jpeg\",\"contentUrl\":\"https:\/\/www.casino.org\/news\/wp-content\/uploads\/2015\/07\/03cf34335dd9ef4ba291db3ef235d6e3.jpeg\",\"width\":256,\"height\":256,\"caption\":\"Primedice.com, which lost over $1 million in bitcoin to a scammer who was able to manipulate its random number generator. 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