Bitcoin Thefts

As a part of our commitment to promote and support the overall security of Bitcoin, we keep this list of selected hacks of Bitcoin wallets and services. Many individual losses are not included but we believe they constitute a significant part of the bitcoin cybercrime. See below our general recommendations for loss prevention.

Reported Bitcoin Services Hacks and Thefts

Last update: 5 Aug 2016

Date Bitcoin Service Target Attack Details BTC stolen USD value
2016 Aug Bitfinex (exchange) user wallets 119,756 $66,000,000
2016 May Gatecoin (exchange) hot wallet multicurrency $2,000,000
2016 Mar ShapeShift (exchange) inside job multicurrency $230,000
 2015 Feb  Bter (exchange)  cold wallet  7,000  $1,750,000
 2015 Feb  Exco.in (exchange)  cold wallet  ??  ??
 2015 Feb  Kipcoin (exchange)  cold wallet  3,000  $690,000
 2015 Feb  796 (exchange)  cold wallet  1,000  $230,000
 2015 Jan  Bitstamp (exchange)  hot wallet  19,000  $5,100,000
 2015 Jan  Cavirtex (exchange)  user database stolen  –  –
 2014 Dec  Blockchain.info (wallet)  users wallets (system flaw, R values)  267  $101,000
 2014 Dec  Mintpal (exchange)  inside job  3,700  $3,208,412
 2014 Oct  Justcoin (exchange)  hot wallet  32M XPR + 54M STR  $300,000
 2014 Mar  Poloniex (exchange)  hot wallet (system flaw)  97  $64,990
 2014 Mar  Flexcoin (wallet)  hot wallet  1,000  $738,240
 2014 Mar  CryptoRush (exchange)  cold wallet / inside job  950  $782,641
 2014 Feb  Silk Road (marketplace)  hot wallet  4,476  $2,600,000
 2014 Jan  Mt.gox (exchange)  cold wallet / inside job  850,000  $700,258,171
 2013 Dec  Blockchain.info (wallet)  2-factor authentication breach  800  $800,000
 2013 Nov  Inputs.io (wallet)  cold wallet  4,100  $4,370,000
 2013 Nov  BIPS (wallet)  cold wallet  1,200  $1,200,000
 2013 Nov  PicoStocks (exchange)  cold wallet  6,000  $6,009,397
 2012 Mar  Linode (webhosting)  insider job / 8 Bitcoin wallets hit
(Bitcoinica, Slush Pool and others)
 46,703 $228,845

Disclaimer

We do our best to keep this list as correct and up-to-date as possible. We use public sources of information and reserve the right to list events that in our opinion are noteworthy. If you think some important hacks are missing or the provided information needs an update, feel free to report to [email protected].

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