A Cambridge Centre for Alternative Finance study based on 11 years of data shows that even if 72%–92% of transnational subsea communication cables globally were disrupted simultaneously, the Bitcoin network would not experience widespread node disconnections. The research analyzed 68 real subsea cable failure incidents and found that 87% of failures affected nodes by less than 5%. However, the study points out that if targeted attacks were directed at critical infrastructure, risks would increase significantly. For example, targeting the five hosting service providers with the most nodes—Hetzner, OVH, Comcast, Amazon, and Google Cloud—would only require disrupting approximately 5% of routing capacity to potentially cause significant impact on the network. (CoinDesk)