The Key to Data Security: WebAuthn

What is WebAuthn?

WebAuthn (Web Authentication API) is a global standard specification for secure authentication on the Web, formulated in 2018 by the World Wide Web Consortium (W3C).

This browser-based API allows user authentication on web applications through the creation of strong “credentials” and user-agent-mediated access to authenticators. This could be either in the form of hardware tokens (like U2F security keys) or in-built modules (biometric readers like Google Hello, Apple Touch ID) in the platform. Web Authn has garnered the support of all leading browsers like Chrome, Firefox, and Edge, and is compatible with all leading platforms.

How does WebAuthn Work?

With WebAuthn, a relying party (such as web service) can integrate a strong layer of authentication into applications with a choice of authenticators. It replaces the need for a password with the generation of a private-public key pair (credential) created for a website. While the private key is stored on the user’s device, the public key is generated randomly and shared with the server. The server then uses the public key to confirm the user’s identity.

The following steps are involved in WebAuthn:

  1. The user opens a website using their device
  2. On the request of the web service (replying party) through the Credential Manager API, the browser generates a new credential, specifying the user’s device capabilities.
  3. During the registration process, the user is offered multiple authentication options. This may vary from external authenticators to biometric authenticators like fingerprint analysis or facial recognition.
  4. Choosing any of the authenticators offered, the user completes the registration process.
  5. The authenticator generates a key pair (a public and a private key) – the public key is forwarded to the server, the private key is stored in the user’s device

Why use WebAuthn?

The public key and private key, both need to be used in conjunction. Therefore, by eliminating the need for a “secret” such as a password, WebAuthn drastically improves data security and prevents data breaches. Even if the public key is hacked, it will not function without the private key – which is stored in the user’s device – and becomes useless.

These are some of the scenarios in which WebAuthn can be useful:

  • Setting up two-factor authentication (with or without passwords) that is resistant to friction and phishing
  • Using biometric authorization that eliminates the need for passwords
  • Recovering lost or stolen devices and bootstrapping of new devices 

Find out how you can improve data security and prevent data breaches with Akku. Get in touch with us for a free demo today!

To Implement or Ignore: MFA for Custom Apps & Websites

Multi-factor authentication (MFA) is one of the most highly recommended security measures in this age of brute-force attacks, data breaches and other such cyber attacks. And while some off-the-shelf SaaS applications may already come with a built-in MFA feature, when it comes to a custom-built application or website, businesses have to make the tough decision between reinforced security and the high cost at which it comes.

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The Problem with SMS-based Authentication

As mobile phones became more sophisticated, their usage shifted from being communication oriented to application oriented. But phone numbers were never intended to be used as secure identifiers – their purpose is to simply act as subscriber identifiers during call routing. When applications use phone numbers in their login processes, it can give attackers and hackers an advantage.

Here are a few ways in which your OTP can be intercepted by hackers:

  1. Man in the Middle attack

This is a type of eavesdropping attack in which a hacker places himself as a proxy or relay between the OTP sender and receiver. For the sender and receiver, the communication will seem like it is happening only between those two, whereas it is actually passing through an impersonator. Black hat hackers often hack into financial websites and place high-level codes which will allow them to intercept messages between banks and users, making it convenient for him/her to access an account.

  1. Malware attack

Ready-to-download malware which can easily hack into a user’s mobile devices are available online. In addition to grabbing your SMS content, these can also access other areas of your phone like your gallery and directory to extract more personal information. In fact, a few of these malware are disguised as mobile applications like fitness trackers, timers, alarm clocks, etc.

  1. SIM cloning attack

Investigative agencies use SIM cloning attacks to monitor and track suspects. However, SIM cloning modules are easy to find and purchase by anyone if they look hard enough. Using this, a user is cut off from his/her mobile network and calls and messages are redirected to the new SIM in the attacker’s phone. To carry out a SIM cloning attack, the SIM being cloned has to be of the GSM type.

  1. SMS-C hack attack

All messages are required to pass to SMS-C servers placed in a mobile service provider’s network. Only after being processed by the SMS-C servers is the message transmitted to a mobile phone. If hackers manage to hack SMS-C servers, they can very easily gain access to all the messages entering and exiting the network. SMS-C servers are often protected by high-end security solutions which are hard to break through. However, it is not impossible.

  1. Brute force attack

In brute force attacks, any and all combinations of numbers are tried to get the right OTP. If the number of entries is limited, brute force attacks can become ineffective in gaining access to an account, simply due to the number of combinations available. It also helps if the OTP is 6 digits instead of 4 digits as the combinations required to successfully execute a brute force attack increases by a factor of 100. Due to such a poor success rate, brute force attacks are not preferred by hackers.

For organizations, there is no reliable way of finding if your employees’ numbers have been compromised. To ensure that your network is secure, we suggest looking for a less-risky option for authenticating your users. You could go for an improved multi-factor authentication method like using the biometrics of a person to verify his/her identity. While there are more sophisticated attacks which can hack a biometric authentication system, it would be almost impossible to recreate a person’s thumbprint or retina blood pattern.

With Akku from CloudNow Technologies, you can easily create a fool-proof identity and access management system by integrating multi-factor authentication using biometric scanners in your login process. To make a significant improvement to your network security by enforcing biometric multi-factor authentication, get in touch with us now.

Why is multi-factor authentication indispensable?

Ever heard of the butterfly theory? A single flap of a butterfly’s wings in Australia has the potential to cause a tsunami in Indonesia. Similarly, a minor tweak in your IT infrastructure has the potential to make every node of your network vulnerable to serious attacks, irrespective of their relationship. To ensure that network security remains as streamlined as possible through any number of changes to your IT systems, it is crucial to add a virtually unhackable component to your network security.

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Password Managers can be Hacked. Now What?

On average, every person has 7.6 accounts – that’s a lot of user IDs and passwords for an individual! Remembering the user ID and password for all these accounts is obviously very cumbersome, and third party service providers have capitalized on this to provide password management services. A password manager is essentially a single repository for all your credentials. Two very popular password managers are LastPass and Dashlane. These are applications which will store your credentials in a “secure” database. However, they haven’t been spared by hackers, who breached their security to get access to thousands of user credentials.

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