A fresh look at data from the Cambridge Centre for Alternative Finance shows Bitcoin’s network keeps running even if many undersea internet lines go down. Most connections would have to break – between 72% and 92% – before any real trouble starts. While luck-based outages hardly faze the system, focused sabotage could still cause harm. Strength against chaos does not mean safety from smart strikes. The strength is when cables break at random. Eleven years of peer-to-peer network records, along with 68 confirmed cable outages, were examined – revealing how Bitcoin adjusts its flow without disruption.

Most Disruptions

Eighty-seven percent barely touched the network, affecting fewer than one in twenty nodes. Price changes during these times showed almost no link to the glitches below ground or under sea. Built-in backups across global connections help explain why things hold together so well. Spreading nodes far and wide turns out to be a quiet strength when cables fail.

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Vulnerabilities to Targeted Attacks

Nevertheless, the research has found that pinpointing attacks on important subsea cable chokepoints or large hosting service providers could almost thoroughly paralyze the BTC network. The very critical fault level reduces to 20% for targeted attacks on the key cables and 5% for attacks on the largest hosting providers like Hetzner, OVH, and Amazon. This is possible because of the concentration of nodes and mining hash rate in a few centralised data centers.

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The Role of Tor in Enhancing Resilience

In fact, the researchers noted that Tor (The Onion Router) implementation has physically strengthened BTC. With 64% of nodes running on Tor, the network largely relies on the geographically concentrated relay infrastructure of very well-connected European countries, thereby making a disruption much more difficult. This serves as a reminder of the vital role that decentralised and censorship-resistant infrastructure plays in ensuring the security of Bitcoin.

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