劍橋大學另類金融中心一項基於 11 年數據的研究顯示，即使全球 72%–92% 的跨國海底通信電纜同時中斷，比特幣網路仍不會出現大規模節點斷連。研究分析了 68 起真實海底電纜故障事件，發現 87% 的故障對節點影響不足 5%。不過研究指出，若針對關鍵基礎設施進行定向攻擊，風險將明顯上升，例如針對節點數量最多的五家託管服務商 Hetzner、OVH、Comcast、Amazon 與 Google Cloud，僅需影響約 5% 的路由容量即可能對網路造成顯著衝擊。

A study by the Cambridge Centre for Alternative Finance, based on 11 years of data, shows that the Bitcoin network would not suffer large-scale node disconnections even if 72%–92% of transnational submarine communication cables were cut simultaneously.

The study analyzed 68 real-world submarine cable failures and found that 87% of them affected fewer than 5% of nodes.

However, the study warns that risks rise significantly if attackers target critical infrastructure. For instance, targeting the five largest node hosting providers — Hetzner, OVH, Comcast, Amazon, and Google Cloud — affecting only about 5% of routing capacity could deliver a major shock to the network.