A Cambridge University study has revealed that undersea cable disruptions have minimal impact on the Bitcoin network, while cloud service centralization poses a more significant risk. Analyzing 11 years of data and 68 submarine cable outages, researchers found that such events affected only about 0.03% of Bitcoin nodes, with negligible impact on network performance. The study highlights that targeted attacks on cloud service providers like Hetzner, AWS, and Google Cloud could disrupt Bitcoin more effectively than random cable failures. The research underscores the importance of decentralized infrastructure, noting that the majority of Bitcoin nodes now operate on Tor, enhancing network resilience against coordinated threats. The findings suggest that while undersea cable cuts are often overemphasized, the real vulnerabilities lie in cloud service dependencies.