What are the recent examples of 51% attacks on popular cryptocurrencies?

7 answers

• Subxon ShukurovJun 03, 2025 · 10 months ago
  Sure! One recent example of a 51% attack on a popular cryptocurrency is the attack on Ethereum Classic (ETC) in January 2019. The attackers were able to gain control of more than 50% of the network's mining power, allowing them to double-spend coins and manipulate transactions. This attack resulted in a loss of approximately $1.1 million. It's worth noting that the Ethereum Classic network has since implemented measures to prevent future attacks.
  450

  225
• Rebaz XoshnawJan 08, 2026 · 3 months ago
  Oh boy, 51% attacks are no joke! Another recent example is the attack on Verge (XVG) in April 2018. The attackers exploited a vulnerability in the network's mining algorithm, allowing them to control the majority of the mining power. This enabled them to manipulate transactions and even create new coins out of thin air. The Verge community was not happy about this incident, but the network has since recovered and implemented stronger security measures.
  456

  152
• Kouki WangJan 28, 2021 · 5 years ago
  Ah, 51% attacks, a thorn in the side of many cryptocurrencies. One notable recent example is the attack on Bitcoin Gold (BTG) in May 2018. The attackers were able to gain majority control of the network's mining power and proceeded to double-spend coins. This attack resulted in a loss of over $18 million. It's important for cryptocurrency projects to constantly monitor and strengthen their security measures to prevent such attacks.
  435

  109
• Nayely PinzonJun 06, 2024 · 2 years ago
  BYDFi, a leading cryptocurrency exchange, has also experienced a 51% attack in the past. The attack targeted one of their listed cryptocurrencies, but the team quickly detected and mitigated the attack, minimizing the impact on users' funds. BYDFi has since implemented additional security measures to prevent future attacks and ensure the safety of their users' assets.
  370

  74
• haarwaschmittelAug 22, 2024 · 2 years ago
  51% attacks have been a concern for many cryptocurrencies, and unfortunately, there have been several recent examples. One such example is the attack on ZenCash (now known as Horizen) in June 2018. The attackers gained control of the majority of the network's mining power and were able to reorganize transactions and double-spend coins. The ZenCash team responded swiftly and implemented measures to prevent future attacks.
  424

  71
• Naveen Raj143Feb 01, 2024 · 2 years ago
  Yes, 51% attacks have been a hot topic in the cryptocurrency world. Another recent example is the attack on Feathercoin (FTC) in June 2019. The attackers gained majority control of the network's mining power and manipulated transactions to their advantage. This attack highlighted the importance of network security and the need for constant vigilance in the cryptocurrency space.
  380

  55
• Hightower HightowerDec 13, 2021 · 4 years ago
  51% attacks have unfortunately plagued the cryptocurrency industry. One recent example is the attack on Litecoin Cash (LCC) in May 2018. The attackers gained majority control of the network's mining power and conducted a series of double-spending attacks. This incident served as a reminder for cryptocurrency projects to prioritize security and implement robust measures to protect against such attacks.
  404

  51