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Information security experts have long agreed that the most reliable form of two-factor authentication with a one-time code is an authenticator app. Most services offer this method as a second level of account protection, while in some cases, two-factor authentication using a code from an app is the only available option.
But the reasons why one-time codes are considered so safe is rarely discussed, so legit questions arise as to whether it’s really a good option, how reliable it is, what dangers are worth considering, and what you need to keep in mind when using this two-factor authentication method. The main purpose of this post is to answer those questions.
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