Cases Involving 51% Attacks: Difference between revisions

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(Created page with "This is an automatically generated list. If any entries are missing or information needs to be added, please use the Discussion page to suggest changes. Some cases do not yet have wiki entries and are presently still needing to be migrated to the wiki. These still link externally. Some dates of older cases are incorrectly stated to be the 1st of the month. Please provide more accurate dates on the Discussion page. ==2021== === August 2021 === [https://www.quadrigainit...")
 
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This is an automatically generated list. If any entries are missing or information needs to be added, please use the Discussion page to suggest changes.
{{Template:Automated List}}


Some cases do not yet have wiki entries and are presently still needing to be migrated to the wiki. These still link externally.
==2024==
=== October 2024 ===
[[M2_Exchange_Access_Control_Vulnerability|Oct 30th - M2 Exchange Access Control Vulnerability - $13.7m (United Arab Emirates)]]


Some dates of older cases are incorrectly stated to be the 1st of the month. Please provide more accurate dates on the Discussion page.


==2021==
==2021==
=== August 2021 ===
=== August 2021 ===
[https://www.quadrigainitiative.com/casestudy/bsv51attackrepelled.php Aug 3rd - BSV 51% Attack Repelled - $0k (Global)]
[[BSV_51%_Attack_Repelled|Aug 3rd - BSV 51% Attack Repelled - $0k (Global)]]




=== July 2021 ===
=== July 2021 ===
[https://www.quadrigainitiative.com/casestudy/bitmartbsv51attack.php Jul 8th - Bitmart BSV 51% Attack - $Unknown (Cayman Islands)]
[[Bitmart_BSV_51%_Attack|Jul 8th - Bitmart BSV 51% Attack - $Unknown (Cayman Islands)]]




=== June 2021 ===
=== June 2021 ===
[https://www.quadrigainitiative.com/casestudy/havenprotocoltripleattack.php Jun 29th - Haven Protocol Triple Attack - $11.6m (Global)]
[[Haven_Protocol_Triple_Attack|Jun 29th - Haven Protocol Triple Attack - $11.6m (Global)]]




=== May 2021 ===
=== May 2021 ===
[https://www.quadrigainitiative.com/casestudy/cheapeth51attackdemonstration.php May 17th - CheapETH 51% Attack Demonstration - $0k (Global)]
[[CheapETH_51%_Attack_Demonstration|May 17th - CheapETH 51% Attack Demonstration - $0k (Global)]]




=== February 2021 ===
=== February 2021 ===
[https://www.quadrigainitiative.com/casestudy/vergeblockreorganizationattempt.php Feb 14th - Verge Block Reorganization Attempt - $0k (Global)]
[[Verge_Block_Reorganization_Attempt|Feb 14th - Verge Block Reorganization Attempt - $0k (Global)]]




=== January 2021 ===
=== January 2021 ===
[https://www.quadrigainitiative.com/casestudy/binancefirozcoin51attack.php Jan 19th - Binance Firo (ZCoin) 51% Attack - $4.381m (Global)]
[[Binance_Firo_(ZCoin)_51%_Attack|Jan 19th - Binance Firo (ZCoin) 51% Attack - $4.381m (Global)]]


[https://www.quadrigainitiative.com/casestudy/indodaxfirozcoin51attack.php Jan 19th - Indodax Firo (ZCoin) 51% Attack - $400k (Global)]
[[Indodax_Firo_(ZCoin)_51%_Attack|Jan 19th - Indodax Firo (ZCoin) 51% Attack - $400k (Global)]]




==2020==
==2020==
=== November 2020 ===
=== November 2020 ===
[https://www.quadrigainitiative.com/casestudy/grintoken51attack.php Nov 7th - Grin Token 51% Attack - $Unknown (Global)]
[[Grin_Token_51%_Attack|Nov 7th - Grin Token 51% Attack - $Unknown (Global)]]




=== August 2020 ===
=== August 2020 ===
[https://www.quadrigainitiative.com/casestudy/ethereumclassicthird51attack.php Aug 29th - Ethereum Classic Third 51% Attack - $5m (Global)]
[[Ethereum_Classic_Third_51%_Attack|Aug 29th - Ethereum Classic Third 51% Attack - $5m (Global)]]


[https://www.quadrigainitiative.com/casestudy/bitfinexethereumclassicsecond51attack.php Aug 5th - Bitfinex/Ethereum Classic Second 51% Attack - $3.2m (Unknown)]
[[Bitfinex/Ethereum_Classic_Second_51%_Attack|Aug 5th - Bitfinex/Ethereum Classic Second 51% Attack - $3.2m (Unknown)]]




=== July 2020 ===
=== July 2020 ===
[https://www.quadrigainitiative.com/casestudy/ethereumclassicokex51attack.php Jul 31st - OkEx Ethereum Classic 51% Attack - $5.6m (Malta)]
[[OkEx_Ethereum_Classic_51%_Attack|Jul 31st - OkEx Ethereum Classic 51% Attack - $5.6m (Malta)]]


[https://www.quadrigainitiative.com/casestudy/bitcoingold51attemptfoiled.php Jul 10th - Bitcoin Gold 51% Attempt Foiled - $0k (Global)]
[[Bitcoin_Gold_51%_Attempt_Foiled|Jul 10th - Bitcoin Gold 51% Attempt Foiled - $0k (Global)]]




=== January 2020 ===
=== January 2020 ===
[https://www.quadrigainitiative.com/casestudy/binancebitcoingolddoublespendhack.php Jan 1st - Binance/Bitcoin Gold Double Spend Hack - $72k (Malta)]
[[Binance/Bitcoin_Gold_Double_Spend_Hack|Jan 1st - Binance/Bitcoin Gold Double Spend Hack - $72k (Malta)]]




==2019==
==2019==
=== May 2019 ===
=== May 2019 ===
[https://www.quadrigainitiative.com/casestudy/bitcoincashtwoblockdoublespend.php May 15th - Bitcoin Cash Two-Block Double Spend - $1.3m (Global)]
[[Bitcoin_Cash_Two-Block_Double_Spend|May 15th - Bitcoin Cash Two-Block Double Spend - $1.3m (Global)]]




=== January 2019 ===
=== January 2019 ===
[https://www.quadrigainitiative.com/casestudy/etc51gateioattack.php Jan 1st - Gate.io Ethereum Classic 51% Attack - $271k (Cayman Islands)]
[[Gate.io_Ethereum_Classic_51%_Attack|Jan 1st - Gate.io Ethereum Classic 51% Attack - $271k (Cayman Islands)]]


[https://www.quadrigainitiative.com/casestudy/etc51bitrueattack.php Jan 1st - Bitrue Ethereum Classic 51% Attack - $14k (Taiwan/Singapore)]
[[Bitrue_Ethereum_Classic_51%_Attack|Jan 1st - Bitrue Ethereum Classic 51% Attack - $14k (Taiwan/Singapore)]]




==2018==
==2018==
=== December 2018 ===
=== December 2018 ===
[https://www.quadrigainitiative.com/casestudy/vertcoin51attack.php Dec 2nd - Vertcoin 51% Attack - $100k (Global)]
[[Vertcoin_51%_Attack|Dec 2nd - Vertcoin 51% Attack - $100k (Global)]]




=== May 2018 ===
=== May 2018 ===
[https://www.quadrigainitiative.com/casestudy/vergesecond51attack.php May 22nd - Verge Second 51% Attack - $1.75m (Global)]
[[Verge_Second_51%_Attack|May 22nd - Verge Second 51% Attack - $1.75m (Global)]]


[https://www.quadrigainitiative.com/casestudy/monacoin51attack.php May 15th - Monacoin 51% Attack - $90k (Japan)]
[[Monacoin_51%_Attack|May 15th - Monacoin 51% Attack - $90k (Japan)]]


[https://www.quadrigainitiative.com/casestudy/binancebitcoingold51attack.php May 11th - Binance Bitcoin Gold 51% Attack - $Unknown (Cayman Islands)]
[[Binance_Bitcoin_Gold_51%_Attack|May 11th - Binance Bitcoin Gold 51% Attack - $Unknown (Cayman Islands)]]


[https://www.quadrigainitiative.com/casestudy/bithumbbitcoingold51attack.php May 11th - Bithumb Bitcoin Gold 51% Attack - $Unknown (South Korea)]
[[Bithumb_Bitcoin_Gold_51%_Attack|May 11th - Bithumb Bitcoin Gold 51% Attack - $Unknown (South Korea)]]


[https://www.quadrigainitiative.com/casestudy/bitinkabitcoingold51attack.php May 11th - Bitinka Bitcoin Gold 51% Attack - $Unknown (Peru)]
[[Bitinka_Bitcoin_Gold_51%_Attack|May 11th - Bitinka Bitcoin Gold 51% Attack - $Unknown (Peru)]]


[https://www.quadrigainitiative.com/casestudy/bitfinexbitcoingold51attack.php May 11th - Bitfinex Bitcoin Gold 51% Attack - $Unknown (Hong Kong)]
[[Bitfinex_Bitcoin_Gold_51%_Attack|May 11th - Bitfinex Bitcoin Gold 51% Attack - $Unknown (Hong Kong)]]


[https://www.quadrigainitiative.com/casestudy/bittrexbitcoingolddoublespend.php May 1st - Bittrex Bitcoin Gold Double-Spend - $255k+ (Liechtenstein)]
[[Bittrex_Bitcoin_Gold_Double-Spend|May 1st - Bittrex Bitcoin Gold Double-Spend - $255k+ (Liechtenstein)]]




=== April 2018 ===
=== April 2018 ===
[https://www.quadrigainitiative.com/casestudy/verge51attack.php Apr 4th - Verge 51% Attack - $1.074m (Global)]
[[Verge_51%_Attack|Apr 4th - Verge 51% Attack - $1.074m (Global)]]


[https://www.quadrigainitiative.com/casestudy/electroneum51attack.php Apr 1st - Electroneum 51% Attack - $0k (Global)]
[[Electroneum_51%_Attack|Apr 1st - Electroneum 51% Attack - $0k (Global)]]




==2014==
==2014==
=== July 2014 ===
=== July 2014 ===
[https://www.quadrigainitiative.com/casestudy/mintpalvericoinhackrollback.php Jul 13th - MintPal Vericoin Hack/Rollback - $2m (United Kingdom)]
[[MintPal_Vericoin_Hack/Rollback|Jul 13th - MintPal Vericoin Hack/Rollback - $2m (United Kingdom)]]




==2013==
==2013==
=== June 2013 ===
=== June 2013 ===
[https://www.quadrigainitiative.com/casestudy/feathercoin51attack.php Jun 8th - Feathercoin 51% Attack - $Unknown (Global)]
[[Feathercoin_51%_Attack|Jun 8th - Feathercoin 51% Attack - $Unknown (Global)]]

Latest revision as of 15:17, 3 December 2024

Notice: This is an automatically generated list. To add new cases, please see the Process For Adding New Cases. If information appears to be incorrect, please use the Discussion page to suggest changes.

Some dates of older cases are stated to be the 1st of the month. Please update the dates in the corresponding article and use the Discussion page to report the issue.

2024

October 2024

Oct 30th - M2 Exchange Access Control Vulnerability - $13.7m (United Arab Emirates)


2021

August 2021

Aug 3rd - BSV 51% Attack Repelled - $0k (Global)


July 2021

Jul 8th - Bitmart BSV 51% Attack - $Unknown (Cayman Islands)


June 2021

Jun 29th - Haven Protocol Triple Attack - $11.6m (Global)


May 2021

May 17th - CheapETH 51% Attack Demonstration - $0k (Global)


February 2021

Feb 14th - Verge Block Reorganization Attempt - $0k (Global)


January 2021

Jan 19th - Binance Firo (ZCoin) 51% Attack - $4.381m (Global)

Jan 19th - Indodax Firo (ZCoin) 51% Attack - $400k (Global)


2020

November 2020

Nov 7th - Grin Token 51% Attack - $Unknown (Global)


August 2020

Aug 29th - Ethereum Classic Third 51% Attack - $5m (Global)

Aug 5th - Bitfinex/Ethereum Classic Second 51% Attack - $3.2m (Unknown)


July 2020

Jul 31st - OkEx Ethereum Classic 51% Attack - $5.6m (Malta)

Jul 10th - Bitcoin Gold 51% Attempt Foiled - $0k (Global)


January 2020

Jan 1st - Binance/Bitcoin Gold Double Spend Hack - $72k (Malta)


2019

May 2019

May 15th - Bitcoin Cash Two-Block Double Spend - $1.3m (Global)


January 2019

Jan 1st - Gate.io Ethereum Classic 51% Attack - $271k (Cayman Islands)

Jan 1st - Bitrue Ethereum Classic 51% Attack - $14k (Taiwan/Singapore)


2018

December 2018

Dec 2nd - Vertcoin 51% Attack - $100k (Global)


May 2018

May 22nd - Verge Second 51% Attack - $1.75m (Global)

May 15th - Monacoin 51% Attack - $90k (Japan)

May 11th - Binance Bitcoin Gold 51% Attack - $Unknown (Cayman Islands)

May 11th - Bithumb Bitcoin Gold 51% Attack - $Unknown (South Korea)

May 11th - Bitinka Bitcoin Gold 51% Attack - $Unknown (Peru)

May 11th - Bitfinex Bitcoin Gold 51% Attack - $Unknown (Hong Kong)

May 1st - Bittrex Bitcoin Gold Double-Spend - $255k+ (Liechtenstein)


April 2018

Apr 4th - Verge 51% Attack - $1.074m (Global)

Apr 1st - Electroneum 51% Attack - $0k (Global)


2014

July 2014

Jul 13th - MintPal Vericoin Hack/Rollback - $2m (United Kingdom)


2013

June 2013

Jun 8th - Feathercoin 51% Attack - $Unknown (Global)