How does SMS authorization work?
The principle of online SMS verification is very email contact lists uk simple. The user, during registration or later, provides their phone number in the application and confirms it by entering the code from the received text message.
In this way, they prove that they are indeed the owners of the given number. When logging in again, they are asked to provide subsequent codes from new SMS messages, which ensures that an authorized person is trying to access the account.
In addition to number confirmation and logging in, SMS authorization is used by financial institutions, for example, as an additional layer of security to approve certain actions (including transfers) after logging into an account. There are many options available, as SMS is an extremely versatile and flexible channel for contacting customers, employees, and business partners.
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The most important advantages of SMS verification
SMS verification is widely used because it combines high security with convenience and low cost. Almost everyone has a smartphone with them most of the day, so copying a short code from a text message to the app is not at all inconvenient.
At the same time, it is difficult for a third party to gain access to it, especially if we apply basic cybersecurity rules (we protect access to the device with a password, we use an antivirus, we do not click on suspicious links).
As a rule, the SMS authorization code arrives after a few or a dozen seconds, and in the case of mobile devices, there is often an option to automatically complete it by listening to incoming messages. It usually