Specifically, NIST states that SMS-based two-factor authentication isn’t secure because the phone may not always be in possession of the phone number, and because SMS messages can be intercepted and not delivered to the phone. Why SMS two-factor authentication is not secure ![]() Then, you type in the passcode into the prompt in order to complete authentication and log into your application. After, your two-factor authentication provider sends a one-time passcode (OTP) via a SMS text message to your phone. In SMS two-factor authentication, you first log into an application using a primary method of authentication, typically your username and password. What is SMS-based two-factor authentication? NIST will be deprecating the authentication method, as noted in the latest draft of the Digital Authentication Guideline. In addition to the FTC (Federal Trade Commission), Google, FIDO (Fast IDentity Online) Alliance and others, Duo has provided input to NIST on moving the NIST Special Publication 800-63 guidelines for authentication away from prescriptive technologies to defining characteristics required for each level. National Institute for Standards and Technology (NIST) has deemed SMS-based two-factor authentication as no longer secure enough to keep hackers out.ĭuo has known this for a while now, which is why we recommend using more secure two-factor authentication methods like Duo Push, instead of SMS. Duo Aligns With NIST on New Authentication Guidelines However, with Verified Duo Push that same attack is immediately stopped because the bad actor is unable to complete the transaction - they cannot enter the unique code in the Duo app, and the employee is encouraged to alert their IT team with a fraud report.īy deploying this new authentication method as part of Duo’s adaptive policies you can harden your device enrollment process, secure sensitive applications, and protect your organization against the latest techniques from adversaries.Industry News JThu T. With a standard push-based MFA solution, the bad actor now has access to the company network. They receive a second notification and assume it's simply their VPN (Virtual Private Network) at home reconnecting and accept the push. Ordinarily they would ignore it, but this time they deny it. ![]() By using a verification code, we ensure only verified users are able to log in, and prevent someone absent-mindedly accepting a push they did not request.įor example, imagine a key employee is vacationing and notices their phone has a Duo push. Introducing Verified Duo PushĪs a first step, we are excited to bring our customers Verified Duo Push in early access, which stops these attacks by asking users to enter a verification code from the access device into the Duo mobile app during the push login process. User training, device trust, and adaptive policies are all important, but Duo is committed to offering more for customers. Push Fatigue – Constant MFA means users pay less attention to the details of their login, causing a user to mindlessly accept a push login Push Harassment – Multiple successive push notifications to bother a user into accepting a push for a fraudulent login attempt Working with our customers, we have identified that push-based authentication can be vulnerable to: With modern phishing-resistant authentication methods, we need to ensure that organizations continue to have the best security around push-based MFA. ![]() While some customers begin to move toward passwordless to improve their security posture, not all organizations have the infrastructure or resources to make that change. This, in turn, will help improve the resilience of your network against bad actors looking to exploit push harassment or push fatigue. We’re excited to announce early access release of the Verified Duo Push, which will increase the security of our push-based multi-factor authentication (MFA) solution. So we listened when customers pointed out the weaknesses in the Duo Push – the notification Duo Mobile users approve when they want to log into protected accounts. Product & Engineering AugJoshua Terry Verified Duo Push Makes MFA More SecureĮditor's Note: We're excited to announce that Duo Verified Push is now generally available! Learn more about our roll out.Īs a security focused organization, Duo is committed to giving our customers the best available tools to address their security concerns.
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