Home » Antivirus » SMS Two-Factor Authentication is Not Secure but Still in Use

In today’s world, technology has become so advanced that anything you do for your data security, there are still some lags. To do safe banking, shopping and money transfer, two factor authentication is a very popular security feature. It is also identified as multi-factor authentication, but this security feature is not enough. According to the US National Institute of Standards and Technology, the two factor authentication can easily breach by hackers. Meant to offer an extra layer of safety by sending a number code to a token generator or an SMS to mobile only the user has authority, this method has frustrated users and not essentially stopped hackers.


Google was the first company to comprehend that the real first layer of online security having a username and password was no longer a trustworthy option to validate users, so they applied two-factor authentication. Later, other companies soon followed, and this two-factor authentication started being used to access internet banking, withdraw cash, make payments and check social media accounts and mails.

The issue with getting codes on your mobile is that mobile cloning can also be done and, with number of malware infection going after code and operating systems for phone, the user will undoubtedly not even know the phone has been altered with.

National Institute of Standards and Technology, a non-regulatory federal organization, actually recommended removing two-factor authentication via SMS and voice due to irregularity and high risk, and suggested for additional control methods.

Out-of-band authentication using the PSTN is criticized, and is being measured for elimination in future editions of this two factor authentication. If the out-of-band verification is to be done using the public switched telephone network, the verifier must confirm that the pre-registered mobile number being used is not associated with a VoIP service.

Digital authentication is the process of establishing confidence in user identities electronically presented to an information system. E-authentication presents a technical challenge when this process involves the digital authentication of individual people over a network.

The current authentication of users is central to this process. Authentication is done by confirming that the claimant controls one or more authenticators related with a given subscriber. An effective authentication ends in the assertion of an identifier, and other identity information, to the trusting party.

The strong point of an authentication transaction is measured by a categorization known as the AAL. Stronger authentication needs a higher level of skills or resources on the part of an attacker in order to effectively authenticate. A high-level brief introduction of the technical needs for each of the authenticator assurance levels is given below.

Authenticator Assurance Level 1 – It gives a bit of guarantee that the claimant controls the authenticator listed to a subscriber. It uses single-factor authentication by a wide range of available authentication techniques. Successful authentication needs that the claimant proves itself through a secure authentication protocol that it possesses and controls the authenticator.

Authenticator Assurance Level 2 – It provides high moral support that the claimant controls the authenticator registered to a subscriber. Two different authentication factors are needed. Approved cryptographic methods are compulsory at AAL 2 and above.

Authenticator Assurance Level 3 – It offers very high confidence that the applicant controls the authenticator listed to a subscriber. Authentication at AAL 3 is built on proof of possession of a key via a cryptographic procedure. AAL 3 layers is similar to AAL 2, but that a hard cryptographic authenticator that also offers impression resistance.

As far as online safety is known, we still have a number of security lags because hackers are getting advanced and developing complex code to detect. Recently, SMS two-factor authentication was the greatest way to protect accounts online, as passwords have become easy to hack. Even if this method might not be 100 percent safe, it’s still better than nothing, so customers are encouraged by companies to add this layer of safety to their accounts that allow it.

In order to save you from any hacker, virus, Trojans, spams, Ransomware it is important to have security software installed. The premium security software like Bitdefender is reliable and fast. If you don’t know about the installation and configuration of Bitdefender simply contact Bitdefender Tech Support Company. These companies have experienced technicians that will assist you in every phase.