I found a recent Cambridge study quite interesting, which puts everything into perspective about what really threatens Bitcoin. We often hear about cuts in submarine cables causing network chaos, but in reality, the numbers show something completely different.

They analyzed 11 years of data and 68 failures in submarine cables. The result? They affected only 0.03% of Bitcoin nodes. Almost nothing. The network didn't even feel it. But here’s the part that should worry more people: centralization in cloud services.

Think about it—if someone managed to take down Hetzner, AWS, or Google Cloud in a coordinated attack, it would have a much greater impact than any random infrastructure failure. These providers host a significant portion of the network’s operations. That is a real risk many ignore.

The good news is that most cryptocurrency nodes that generate rewards and participate in the network now run on Tor. This greatly increases resilience against targeted attacks. True decentralization happens when you distribute the infrastructure itself, not when you rely on three big cloud providers.

Basically, the study shows that while everyone worries about submarine cables, serious vulnerabilities are elsewhere. It’s worth paying attention to this, especially if you operate any kind of node on the network.