| Sumario: | Virtual work, e-commerce, digital health, distance, or virtual education grew exponentially thanks to the confinement due to the Covid-19 pandemic. As a result, the same happened with attacks and security incidents, caused by various circumstances. Personal data is generally the main target of hackers, this includes financial institutions. In 2020 alone, 12 known cybersecurity events occurred in Mexico that included institutions such as Condusef, SAT, Banxico, the secretary of public function, among others, in the last one personal data of public officials were violated and exposed(Riquelme, 2021). With the evolution of technology, attacks become increasingly sophisticated. However, one of the most used and effective systems to protect data is encryption that is related to computer security offers solutions to this problem since it is a discipline that addresses various techniques, applications and devices responsible for ensuring the integrity and privacy of the information of both the computer system and its users. This work seeks to explain the main encryption techniques currently used, the fundamental basis of its encryption process, the importance of the best-known standards in the computer age, the difference between symmetric encryption and asymmetric encryption, when it can be considered hybrid encryption and where they are commonly used.
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