This list of Bitcoin & Cryptocurrency exchange hacks should be ample proof for you to NOT leave your funds on exchanges, but instead, store your funds on a reputable non-custodial wallet to potentially maximize the security of your funds.
Note that the exchange that are listed are only exchanges that are confirmed to be hacked.
Current number of hacked exchanges: 43
"Japanese cryptocurrency exchange Bitpoint was hacked last week when hackers stole 3.5 billion yen ($32 million) from the exchange’s hot wallet, of which 2.5 billion yen were customer funds."
"hackers withdrew 7,000 Bitcoins worth about $40 million via a single transaction in a “large scale security breach,” ... "The hackers used a “variety of techniques” including phishing and viruses to obtain a large amount of user data"
"South Korean crypto exchange Bithumb has had around $13 million in the EOS cryptocurrency stolen in a hack it suspects was an insider job.
The company confirmed in statement on Saturday that it first spotted an “abnormal withdrawal” of the cryptocurrency through its monitoring system"
"DragonEx announced the news on its official Telegram channel on Monday, stating that, on Sunday, March 24, it had suffered a cyberattack that saw cryptocurrency funds owned by users and the exchange “transferred and stolen.” No information has yet been provided on the value of the losses."
"The official statement of the exchange disclosed that 450,000 email addresses and passwords were leaked in a massive global hacking attack involving 24 websites and some 747 million records."
"The exchange announced the news on Twitter, stating that it “suffered a security breach which resulted in significant losses.”
Meanwhile, tweets from Whale Alert indicated that 19,391 (ETH) tokens worth nearly $2.44 million and around 48 million centrality (CENNZ) tokens worth about $1.18 million were transferred from Cryptopia to unknown wallets on Jan. 13."
Canadian crypto exchange Maple Change has been hacked. The company is reporting over $5 million in losses – virtually all its funds – and says it cannot pay any of its customers back.
However, many are questioning whether the company was hacked or if the loss was something planned by internal representatives..
"Coinrail, a cryptocurrency exchange based in South Korea, said on Sunday its platform has been hacked, with other sources suggesting it lost cryptocurrencies totaling as much as $40 million in the attack."
"Early Friday morning in Tokyo, hackers broke into a cryptocurrency exchange called Coincheck Inc. and made off with nearly $500 million in digital tokens. It’s one of the biggest heists in history, with the exchange losing more than 500 million of the somewhat obscure NEM coins."
"LocalBitcoins, the popular peer-to-peer market for fiat-to-bitcoin trading, on Saturday said that it had suffered a security breach that lasted about 5 hours before the Finland-based company managed to stop it.
Hackers had reportedly managed to breach at least six user accounts, getting away with more than BTC 7.9 (USD 27,000.)"
"Hackers succeeded in grabbing the personal information of 31,800 Bithumb website users, including their names, mobile phone numbers and email addresses. The exchange claims that this number represents approximately three percent of customers."
"South Korean exchange Yapizon has become the latest victim of hackers...In a notice on Saturday translated on social media, staff confirmed the theft of 3,831 Bitcoins, equivalent to 37.08% of the total assets."
" Polish bitcoin exchange Bitcurex just posted an update announcing it will close following a hack...resulting in $1.5m going missing. It’s one of the bigger bitcoin exchanges serving the European market, specifically for trading zloty and also euros."
"Nearly 120,000 units of digital currency bitcoin worth about US$72 million was stolen from the exchange platform Bitfinex in Hong Kong, rattling the global bitcoin community in the second-biggest security breach ever of such an exchange."
"There was a complicated series of thefts at ShapeShift, a cryptocurrency exchange that calls itself the "safest asset exchange on Earth" and is used to convert between different virtual currencies. Thieves broke in three separate times over a time span of two weeks and cleaned out the hot wallets each time, totaling around $200K USD."
Source: Hacking, Distributed
"Gatecoin has claimed that it lost as much as 185,000 ethers and 250 bitcoins, an amount worth roughly $2.14m at press time. The exchange further said that it believes the hack first began on 9th May, and that it continued over the following three days."
"Hong Kong-based bitcoin exchange Bitfinex announced around 5 a.m. EDT today the startup’s hot wallets were compromised and some bitcoin were stolen...If correct, it would put the amount of bitcoin lost in the hack just more than 1,400 or around 0.06 percent of the company’s total holdings."
"On February 18, the day of the Chinese Lunar New Year’s Eve, a message was posted on their website stating that their wallet servers were hacked and that they had lost over 3000 BTC."
"According to the explanation, hackers had compromised areas of the exchange in the previous days, which had caused a user to mention the current address has been tampered with...Reports are emerging of Chinese Bitcoin exchange 796 mistakenly losing 1000BTC of customer funds in a botched customer service request."
"On January 4th, some of Bitstamp’s operational wallets were compromised, resulting in a loss of less than 19,000 BTC...This breach represents a small fraction of Bitstamp’s total bitcoin reserves, the overwhelming majority of which are are held in secure offline cold storage systems."
"The exchange alleges in a newly released blog post that it was the target of a hack in July 2014, an incident that it said cost it approximately 13,000 BTC ($7.5m at the time) and approximately 300,000 LTC (then $2.08m)."
"Digital currency exchange platform MintPal has suffered a successful hack attack that resulted in the loss millions of vericoins from its hot wallet.
The breach resulted in the loss of roughly 8 million vericoins (VRC), or about 30% of the total coins in existence, a member of the vericoin development team told CoinDesk."
"Digital currency exchange Poloniex, which trades bitcoin and other popular digital currencies such as litecoin, namecoin and dogecoin, has lost 12.3% of its total bitcoin supply in an attack...97 BTC were taken and 97 BTC were paid back"
"Alberta-based bitcoin storage specialist Flexcoin has announced that it will shut down following an attack and subsequent robbery that saw cybercriminals abscond with 896 BTC (roughly $600,000 at press time) stored in the company’s hot wallets."
"PicoStocks announced that it had been robbed again. This time a total of 5,896 bitcoins were missing from both its “hot” and “cold” wallets. Because cold wallets can’t be accessed in online attacks, the theft may have been an inside job."
"The victim of a massive hack, Mt. Gox lost about 740,000 bitcoins (6% of all bitcoin in existence at the time), valued at the equivalent of €460 million at the time and over $3 billion at October 2017 prices. An additional $27 million was missing from the company’s bank accounts. Although 200,000 bitcoins were eventually recovered, the remaining 650,000 have never been recovered."
"Two hacks totalling about 4100 BTC have left Inputs.io unable to pay all user balances. The attacker compromised the hosting account through compromising email accounts (some very old, and without phone numbers attached, so it was easy to reset). The attacker was able to bypass 2FA due to a flaw on the server host side."
"The attacker has acquired login credentials to our VPS control account with our hosting service provider and has then asked for the root password reset of all servers...The total losses of the security breach are 1454 BTC 225,263 TRC 23,400 LTC"
"Bitcoinica was robbed for the third time when 40,000 BTC were stolen, but this time all the funds were secretly held in Mt. Gox. These funds were also reported to be refunded."
Source: Block Stuffs
"just after the weeks of the first attack, Bitcoinica was raided again. This time hackers accessed Bitcoinica’s user’s database including all their identification details and sensitive data. This time, they stole 38,000 BTC."
Source: Block Stuffs
"the hot wallets stored on the Linode’s server were unencrypted by the hacker and they stole 43,554 bitcoins. In this attack, several individuals that used Linode lost the fund."
Source: Block Stuffs
"On Oct 5, 2011 the Bitcoin7 exchange website posted a message to its users that it had been subject to a hacking intrusion that compromised their wallets and their user database.
The sensitive information includes: Scanned ID/Passport; Proof of address/utility bill; Proof of funding or your bank statement; ABA/SWIFT number for bank transfer; Bank name and address."
"a security breach of the Mt. Gox bitcoin exchange caused the nominal price of a bitcoin to fraudulently drop to one cent on the Mt. Gox exchange, after a hacker allegedly used credentials from a Mt. Gox auditor's compromised computer to transfer a large number of bitcoins illegally to himself. He used the exchange's software to sell them all nominally, creating a massive "ask" order at any price. Within minutes the price corrected to its correct user-traded value. Accounts with the equivalent of more than $8,750,000 were affected."