Typically during the two-factor authentication process an one-time password can be used to verify the users identity. By asking for multiple standards to be met such as something you know and something you have authentication is secured by this. Something you know being something and your traditional username and password you’ve being your OTP or one-time password. Yet during transmission of this one-time password a hacker could intercept the info to get access if the OTP is just not sent to an out-of-band network. One-time passwords come from something as simple as a sheet of codes to the more sophisticated propriety key generating tokens in many types. Many times for info that is not an extremely high security threat the OTP will be sent via email to the user for identification. That is not an out-of-band solution because the email can be received on exactly the same network as the login panel. The difficulty with sending the second factor in the authentication procedure to your option that is not out-of-group is that software that is readily accessible and easy to use makes it easy to intercept information such as the users one-time password. With an out-of-group solution the user would have to receive their OTP on a separate network than their login panel.
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One way is through proprietary tokens that generate dynamic one-time passwords. However keepsakes be pricey and can create chaos when lost or misplaced. Another device that is less expensive and more reliable would be the users mobile phone. Since we are a society who must be joined to our mobile phones always their apparatus will not be forgotten by an user and the likelihood of the apparatus being broken are much lower. Also the apparatus network is totally out-of-band from any login panel. Securing authentication -time password through an out-of-band network protects misplacement of the device in addition to the consumer from malicious software. This ensures the user will receive their OTP when they want it and makes it very hard for a beginner hacker to get access to confidential information or networks.
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The only way to become more safe once you already use an out-of-band OTP for two-factor authentication is if it’s a zero footprint alternative. Zero footprint authentications let the one-time password to be sent without making any trace of the authentication or password behind on the device. Finally procuring buy cheap software the authentication process completely from network or internet based attacks.