Bitcoin’s Stability Undermines Cable Cuts: New Research Highlights Risks
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A Senior Altcoin Analyst, Sarah combines on-chain data with a background in venture capital research. With a Master’s in Computer Science, she provides precise evaluations…
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In March 2024, seven submarine cables off the coast of Côte d’Ivoire were severed, resulting in a significant regional internet disruption that registered an IODA severity score exceeding 11,000. Despite this chaos, Bitcoin’s performance remained relatively stable, reflecting the cryptocurrency’s robust network design.
The affected area only hosted a minimal fraction of Bitcoin’s network, with around five nodes constituting just 0.03% of its global presence. As a result, Bitcoin experienced a marginal decline of 2.5%, which fell within the range of normal market fluctuations.
The lack of significant price movement or disruption in consensus during this event has drawn attention to a new study from Cambridge University. Over a period of 11 years, researchers analyzed data involving 68 verified cable faults, highlighting that such incidents typically exert little impact on Bitcoin’s network.
The study indicates that while random infrastructure failures have minimal consequences, targeted actions against specific hosting networks can precipitate far more severe disruptions. It illustrates a critical point: coordinated pressure on prominent hosting networks can hinder the functioning of visible nodes much more effectively than random cable failures.
For instance, while random cable cuts require 72% to 92% of cables to be severed to reach the critical threshold of node disconnections, targeted disruptions of leading autonomous systems can achieve this with only a 5% decline in routing capacity.
The authors of the study noted a counterintuitive twist within the Bitcoin landscape: the crackdown on mining activities in China, coupled with the rise of censorship-resistant infrastructure globally, has inadvertently fortified Bitcoin’s topology.
Tor, traditionally recognized as a privacy enhancement, has evolved to serve as a critical layer of resilience within the Bitcoin network. An impressive 63% of reachable Bitcoin nodes currently operate over Tor, reflecting a major shift toward adopting censorship-resistant technologies.
Further insights from the study highlight that between 2014 and 2025, more than 658 submarine cables were analyzed, revealing that a staggering 87% of verified cable fault incidents led to a less than 5% change in node activity. The correlation between these cable failures and Bitcoin’s price fluctuations was essentially non-existent, falling around zero.
In investigating the real vulnerabilities within the network, the researchers emphasized that targeted attacks on specific networks could lead to noticeable disruptions even without substantial physical damage to cables. This scenario stands in stark contrast to the widely held belief that submarine cable damage poses the greatest risk.
A recent snapshot of Bitcoin nodes emphasized the concentration of hosting among a few key players, such as Hetzner and Amazon Web Services, which could be susceptible to coordinated actions that might disrupt Bitcoin’s connectivity.
Thus, while Bitcoin has proven adaptable and resilient to various stressors, the study underscores that the real threat comes not from random cable damage but from possible coordinated actions aimed at key hosting infrastructures. This nuanced understanding reveals that, despite historical apprehensions, Bitcoin has developed mechanisms that enable it to endure and adapt, showcasing resilience amid potential challenges.
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