Maintaining confidentiality is a priority for email services. Mail.ru Group Corporation offers users to switch to a new, more reliable method of identification – receiving one-time passwords via SMS messages and through push notifications. Unlike persistent passwords, one-time keys to user mailboxes cannot be stolen and picked up. Currently, many services, sites, services and applications are “tied” to users’ mailboxes; therefore, password protection is becoming an important task. In addition, most people do not adhere to the rules proposed by cybersecurity experts, and do not change the code to enter the e-mail once every six months using a complex set of characters. Over time, developers from Mail.ru Group plan to completely abandon the traditional form of passwords and move on to user identification using biometric data or physical keys. Thus, the use of a fingerprint or a retina scanner will become more reliable protection for the electronic mail box of the largest mail service Mail.ru in Russia, with a user audience of up to 26.9 million people. For comparison, Gmail users in Russia, there are up to 18.8 million people.