A new study by the Cambridge Centre for Alternative Finance highlights a significant vulnerability in Bitcoin's network infrastructure. Researchers Wenbin Wu and Alexander Neumueller found that 95% of Bitcoin nodes could be compromised by targeted attacks on key underwater cables and major routing providers. While random cable failures pose minimal risk, a coordinated attack on critical "high-betweenness" cables could severely disrupt the network. The study also notes that the adoption of the TOR network has bolstered Bitcoin's resilience. By 2025, 64% of Bitcoin nodes were operating on TOR, leveraging Europe's robust internet infrastructure to mitigate risks. This adaptation provides a "compound barrier to disruption," enhancing the network's physical-layer resilience against potential attacks.