Quantum computing is a model that differs from classical computing. It is based on the use of \"qubits\" or quantum bits, which can only be described using quantum mechanics. Qubits can have two simultaneous states and use a different paradigm from classical computing, based on the combination of 1s and 0s, which allows for new possibilities within the algorithm. Based on this, they have already positioned themselves as the computers of the future. The capabilities of these new machines make them able to decrypt data much faster than a conventional computer. A Turing machine is equivalent to a classical computer, while a quantum computer is equivalent to a quantum Turing machine. On the one hand, in the United States, the Department of Homeland Security is conducting research to combat hackers who wish to steal encrypted information, which may be decrypted in the future through the use of quantum computers. Meanwhile, at the National Institute of Standards and Technology, they began creating the first quantum computer in 2016, which will be ready in 2024. This development is important because creating this technology can begin to prevent cyberattacks. On the other hand, there are companies already commercializing this technology, which supposedly deciphers post-quantum cryptography, even though there is no guarantee that it will actually work in the future. This type of technology could take around 30 years to develop before the machines can truly benefit humanity and help us solve truly important problems.