The creators of the Quantum Resistant Ledger platform chose an unusual goal - developing a system that is immune to hacking using a quantum computer. According to them, the existing protection algorithms will not help against a computer operating on the principles of quantum mechanics. And that is the problem. All existing computers are currently use technologies of classical physics. And today there are only a number of theories that can help in the construction of a quantum computer. In terms of information processing speed, such a machine will be several orders ahead of any existing computing devices. And we are talking not only about home PCs but also about industrial computers. According to some experts, Bitcoin (and several other platforms) is reliably protected from hacking. But the developers of Quantum Resistant Ledger argue that using a quantum computer will be able to hack the system. As they explain, the point here is that when creating a transaction through the blockchain, the public key is used. Theoretically, the key is opened only at the time of the transaction. The algorithm of Quantum Resistant Ledger avoids a situation in which the public key can benefit the attacker.