Top Tweets for #Computors

Qubic knows exactly what a 51% attack looks like. In 2025, Qubic took majority control of Monero’s hash rate and reorganized its ledger, a live experiment with crypto’s oldest threat. The economics are why it keeps happening. Overpowering Bitcoin would cost an attacker more than $6 billion. A smaller proof-of-work chain can go for as little as $50,000. That gap is why chains like Bitcoin Gold and Ethereum Classic have been hit. Qubic’s own chain was built to resist that attack long before its Monero experiment. The number that matters here is 66.7%, and it works in your favor. A change to Qubic’s ledger finalizes only when 451 of its 676 Computors agree. That’s a two-thirds supermajority, required every single time. So what happens when attackers show up? Say 226 Computors turn malicious. They still can’t rewrite a single balance. The most they can do is halt the network, and a frozen ledger keeps every balance exactly as it was. Gathering even 226 is the hard part. No single entity is allowed more than 225 Computor slots, which is hard-coded into the protocol, one slot below the number it would take to force a halt. Watching the whole time: Network Guardians, independent nodes embedded in the core network that monitor Computor behavior in real time. The design started from a blunt assumption: Some Computors could turn malicious. It earns its security by verifying every actor, every block. Qubic ran that experiment on someone else’s chain. Its own was built for 66.7%, turning the attacker’s math into a defense.