Tokio Marine HCC International Cyber team has published their fourth annual Top 10 Cyber Incidents Report 2023. Here is their Top 10 with the link to the report at the bottom of the post.

1. Israel – Hamas war (Nation State attack)
   Impact – Kinetic cyber attack causing direct or indirect physical damage, injury or death to people
2. ION Derivatives (Financial institution)
   Impact – Systemic risk due to supply chain attack causing large-scale business interruption
3. MoveIT (IT provider)
   Impact – Systemic risk due to supply chain attack causing large-scale data breaches
4. CBC (Financial Institution)
   Impact – Ransomware attack on one of the world’s largest banks
5. Caesars and MGM Casinos (Gambling)
   Impact – Ransomware attack with data breach on two of the largest casinos in Las Vegas.
6. Marina Bay Sands (Hospitality & Accommodation)
   Impact – Data breach of 665,000 customers’ personal information
7. Air Europa (Transportation)
   Impact – Data breach of payment information and credit cards, including CVV codes, and significant reputational damage
8. UK Royal Mail (Postal Services – Critical National Infrastructure)
   Impact – Ransomware attack causing service disruption and reputational damage. Initial ransom demand of 80M USD
9. Boeing (Aircraft Manufacturing)
   Impact – Ransomware attack causing more than 43GB of data leaked
10. Largest DDoS attack (IT infrastructure providers)
    Impact – Largest DDoS attack targeting major infrastructure providers

Link to the Tokio Marine report is here.