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Two Factor Autenthication is a security feature that is used to verify whether the user who is going to log in is actually the person who has the account.
Its function is to minimize the risk of other people being able to access our account for things we don't want, like other people using our account related to money or privacy, good names that can harm us.
The workings of the Two Factor Authentication are as follows:
Account holders will usually be asked to enter telephone number information, as a complement to the data from their (email) account. After that, the system will send a verification code to the telephone number previously registered. Then the account owner will be asked to fill in the code field sent to the cellphone number, on the page when logged in.
That way the account owned by the user will be harder to hijack. This is because, the account is integrated with the account owner's telephone number. If there is someone who wants to hijack the account, then he must have access to the account number of the owner.
Of course it will not be easy for hackers or hijackers of social media accounts, to get access to the phone number of the account owner.
