{"id":1936,"date":"2025-03-15T11:44:47","date_gmt":"2025-03-15T11:44:47","guid":{"rendered":"https:\/\/discovery.cevolution.co.uk\/ciam\/?p=1936"},"modified":"2025-10-28T11:07:36","modified_gmt":"2025-10-28T11:07:36","slug":"otp-and-magic-link-passwordless-scenarios","status":"publish","type":"post","link":"https:\/\/discovery.cevolution.co.uk\/ciam\/2025\/03\/15\/otp-and-magic-link-passwordless-scenarios\/","title":{"rendered":"Passwordless OTP and Magic Link Scenarios"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p>Authentication plays a crucial role that is central to almost every Customer Identity and Access Management (<span class=\"popup-trigger popmake-1185\" data-popup-id=\"1185\" data-do-default=\"0\">CIAM<\/span>) use case and the traditional method for validating a user has typically involved the use of a password. At least in a first-factor context. <\/p>\n\n\n\n<p>However, the password-based method for user authentication \u2014 typically used as part of sign-up or <span class=\"popup-trigger popmake-1437\" data-popup-id=\"1437\" data-do-default=\"0\">sign-in<\/span> \u2014 is progressively being replaced by more convenient passwordless approaches. <\/p>\n\n\n\n<p>I&#8217;m <span class=\"popup-trigger popmake-378\" data-popup-id=\"378\" data-do-default=\"0\">Peter Fernandez<\/span>, and in this article, I&#8217;m going to be talking about <strong>Magic Link<\/strong> and <strong>One-Time Passwords (<span class=\"popup-trigger popmake-2284\" data-popup-id=\"2284\" data-do-default=\"0\">OTPs<\/span>)<\/strong> as some of the most popular passwordless alternatives to password-oriented <span class=\"popup-trigger popmake-1087\" data-popup-id=\"1087\" data-do-default=\"0\">user authentication<\/span>.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"an-introduction-to-passwordless\">An Introduction to Passwordless<\/h2>\n\n\n<p>Traditional authentication methods typically rely on the use of a password credential. Passwords, however, pose several challenges:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Password fatigue<\/strong> means they are often reused across multiple services, <\/li>\n\n\n\n<li>Vulnerable to <strong>brute force<\/strong>, <strong>phishing<\/strong>, and other types of attack.<\/li>\n\n\n\n<li>Create friction in the user experience given that people struggle to remember the type of complex password less susceptible to attack.<\/li>\n\n\n\n<li><strong>Forgotten passwords<\/strong> are a source of friction for users, where forgotten passwords need to be securely reset either manually via a helpdesk or via some user self-service process.<\/li>\n\n\n\n<li><strong>Password processing<\/strong> is an intensive operation. The computing and memory resources required to calculate and compare the password hashes \u2014 recommended for secure password storage \u2014 are not insignificant and can lead to increased costs when it comes to cloud-based implementations for user authentication.<\/li>\n<\/ul>\n\n\n\n<p>To address these challenges, <strong>passwordless authentication<\/strong> has emerged to offer a more secure and user-friendly alternative. Passwordless eliminates the need for passwords entirely, and modern passwordless implementations include the likes of <span class=\"popup-trigger popmake-1847\" data-popup-id=\"1847\" data-do-default=\"0\">WebAuthn<\/span> and <span class=\"popup-trigger popmake-1879\" data-popup-id=\"1879\" data-do-default=\"0\">Passkeys<\/span><\/p>\n\n\n\n<div class=\"wp-block-group has-base-color has-accent-4-background-color has-text-color has-background has-link-color wp-elements-976f3c77ba4931d814d27fb4fb8cc875 has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"border-radius:20px\">\n<p class=\"has-text-align-center\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\"><span class=\"popup-trigger popmake-523\" data-popup-id=\"523\" data-do-default=\"0\">Social<\/span> and (Enterprise) Federation also provide a solution to the challenges of using passwords, however these push the password problem to an upstream <span class=\"popup-trigger popmake-415\" data-popup-id=\"415\" data-do-default=\"0\">identity provider<\/span> rather than  doing away with passwords altogether. <\/p>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"magic-link-and-otp-workflows\">Magic Link and OTP Workflows<\/h2>\n\n\n<p>In addition, the classic solutions of Magic Link and <span class=\"popup-trigger popmake-2284 \" data-popup-id=\"2284\" data-do-default=\"0\">OTP<\/span> can also be used in a wide range of CIAM use-case scenarios. Both of these methods focus on simplifying the authentication process, and doing so in a security-conscious manner:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Magic Link<\/strong>: A Magic Link is a unique URL sent to a user\u2019s email or phone, which, when clicked, automatically authenticates them without requiring a password.<\/li>\n\n\n\n<li><strong>One-Time Passwords (<span class=\"popup-trigger popmake-2284 \" data-popup-id=\"2284\" data-do-default=\"0\">OTP<\/span>)<\/strong>: OTPs are temporary, one-time-use passcodes sent to users via email, SMS, or authentication apps. The user enters this code during the authentication process (as part of credential validation) to gain access.<\/li>\n<\/ul>\n\n\n\n<p>Both methods eliminate the need for users to create, store, and remember passwords, which can reduce friction and help lower abandonment rates. This ease of use is especially crucial for <span class=\"popup-trigger popmake-1354\" data-popup-id=\"1354\" data-do-default=\"0\">B2C<\/span> platforms, that deal with large numbers of customers, many of whom may prefer a simpler authentication process.<\/p>\n\n\n\n<p>Magic Link and OTP workflows are also highly scalable. Since they don\u2019t require extensive infrastructure for password management, businesses can easily handle large user bases without compromising security. Additionally, these methods can be adapted to different devices and channels, making them versatile and flexible for a wide range of use cases.<\/p>\n\n\n\n<p>From a security perspective, the typically short lifespans associated with Magic Links and OTPs help reduce the window of opportunity for attackers seeking to intercept or reuse a user&#8217;s credentials.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"magic-link-and-otp-use-cases\">Magic Link and OTP Use Cases<\/h2>\n\n\n<p>Having discussed some of the benefits of these passwordless authentication methods, let&#8217;s explore some key scenarios where <strong>Magic Link<\/strong> and <strong>OTP <\/strong>workflows can significantly improve CIAM integrations.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"onboarding-new-users\">Onboarding New Users<\/h3>\n\n\n<p>Ensuring that new users can quickly and easily authenticate to access services is a key part of the user experience. Magic Links and OTPs can be excellent choices for streamlining the onboarding process, reducing friction, and improving conversion rates.<\/p>\n\n\n\n<p>For example, in a typical scenario, users are often asked to provide their email or phone number during registration. After submitting the information, sending a <strong>Magic Link<\/strong> to their email or mobile device allows a user to be taken directly to the SaaS platform, bypassing the need to create a password. The benefits of this include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Frictionless Experience<\/strong>: Users don\u2019t need to remember or create passwords which is often a major barrier during registration.<\/li>\n\n\n\n<li><strong>Reduced Drop-off<\/strong>: The registration process becomes faster and simpler, leading to fewer abandoned sign-ups.<\/li>\n\n\n\n<li><strong>Increased Security<\/strong>: Magic Links are typically time-limited and can only be used once, adding a layer of security during the registration process.<\/li>\n\n\n\n<li><strong>Email address and\/or phone number verification<\/strong> can be performed as part of the registration process. For example, phone number\/device verification is particularly valuable in cases where <span class=\"popup-trigger popmake-1879\" data-popup-id=\"1879\" data-do-default=\"0\">Passkeys<\/span> are also being employed.<\/li>\n<\/ul>\n\n\n\n<p>Additionally, Magic Link processing offers a great solution for the user invite workflows typically encountered in B2B SaaS scenarios.  <\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"account-recovery\">Account Recovery<\/h3>\n\n\n<p>One of the major challenges in user authentication is ensuring that users can recover their access if they forget their credentials or lose their devices. Using Magic Links and OTPs can offer a highly effective solution to facilitating account recovery.<\/p>\n\n\n\n<div class=\"wp-block-group has-base-color has-accent-4-background-color has-text-color has-background has-link-color wp-elements-c988b67ac43c38be431293e20a798c45 has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"border-radius:20px\">\n<p class=\"has-text-align-center\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">Recovery workflows should only ever use verified email addresses and\/or phone numbers \u2014 a process that can be performed as part of user registration (discussed above).<\/p>\n<\/div>\n\n\n\n<p>If a user forgets their password, for instance \u2014 or, perhaps, loses the device on which their Passkey is registered \u2014 instead of going through a tedious reset process, they can receive a Magic Link to their registered and verified email. Clicking the Magic Link will allow them to instantly authenticate and perform the necessary reset processing, ultimately resulting in a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Simplified Process<\/strong>: Magic links streamline the recovery process, offering a smooth and easy path for users to regain access to their accounts.<\/li>\n\n\n\n<li><strong>Reduced Support Burden<\/strong>: By eliminating the need for lengthy reset procedures, organizations can reduce the volume of support tickets related to access issues.<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading\" id=\"otps-for-twofactor-authentication-2fa\">OTPs for Two-Factor Authentication (<span class=\"popup-trigger popmake-428 \" data-popup-id=\"428\" data-do-default=\"0\">2FA<\/span>)<\/h3>\n\n\n<p>For higher security, users can be prompted to authenticate\/re-authenticate using an OTP when performing sensitive operations (e.g., transferring funds, or changing account settings). After entering their credentials, the system will send an OTP to their registered email or phone. The user must then input the OTP to confirm their identity, providing:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Enhanced Security<\/strong>: 2FA significantly enhances security by adding an additional layer of protection beyond just a password.<\/li>\n\n\n\n<li><strong>User Flexibility<\/strong>: OTPs can be delivered via multiple channels, ensuring that users have access to them no matter their location or device.<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading\" id=\"continuous-authentication-for-highrisk-transactions\">Continuous Authentication for High-Risk Transactions<\/h3>\n\n\n<p>Continuous authentication, which evaluates user behaviour over time, can help mitigate fraud and unauthorized access, especially during high-risk transactions. Again, the use of OTPs and\/or Magic Links is extremely beneficial to this type of dynamic authentication process.<\/p>\n\n\n\n<p>For example, during high-risk operations such as transferring money, updating account information, or authorizing payments, the system can trigger an OTP workflow. The user receives an OTP via SMS or email and must input it to verify their identity:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Time-Sensitive Authentication<\/strong>: OTPs help ensure that the user attempting the transaction is legitimate and currently authenticated.<\/li>\n\n\n\n<li><strong>Fraud Prevention<\/strong>: By requiring an OTP for every high-risk transaction, organizations can minimize the potential for fraudulent activity.<\/li>\n<\/ul>\n\n\n\n<p>Additionally, if a user accesses sensitive parts of a platform after a period of inactivity, they can be prompted to re-authenticate through a Magic Link sent to their email. This ensures that the user is still authorized to perform the desired actions. The benefits of this include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Seamless Security<\/strong>: Magic links offer a smooth re-authentication process without requiring users to enter passwords.<\/li>\n\n\n\n<li><strong>Enhanced User Experience<\/strong>: Users don\u2019t have to go through cumbersome re-authentication steps but can still be confident that their session is secure.<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading\" id=\"initiating-outofband-oob-workflows\">Initiating Out-Of-Band (OOB) Workflows<\/h3>\n\n\n<p>There are situations \u2014 such as when utilizing native device authentication via Apple ID or Google ID \u2014 where interactive user authentication is never\/seldom performed (within the context of a SaaS application). In such situations, it can be difficult to initiate workflows involving progressive profiling and the like.<\/p>\n\n\n\n<div class=\"wp-block-group has-base-color has-accent-4-background-color has-text-color has-background has-link-color wp-elements-09a4e5d9ed0e75d5f96916c34dfb5fb1 has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"border-radius:20px\">\n<p class=\"has-text-align-center\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">Situations where progressive profiling is performed often include such things as updates to terms and conditions and where re-verification of contact information is required.<\/p>\n<\/div>\n\n\n\n<p>Magic Link processing can offer a way of addressing this challenge, by signalling to the user \u2014 either via email or SMS \u2014 that their attention is required, and providing a link that both initiates the process and validates the user at the same time. <\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"challenges-and-considerations\">Challenges and Considerations<\/h2>\n\n\n<p>While the use of Magic Links and OTPs can be highly beneficial, they do come with some challenges:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Email and SMS Delivery Issues<\/strong>: Both methods rely on email or SMS channels for credential delivery, where delays or failures (in delivery) can cause frustration for users.<\/li>\n\n\n\n<li><strong>Security Concerns<\/strong>: OTPs and Magic Links are vulnerable to man-in-the-middle attacks or SIM-swapping if the proper security controls are not implemented.<\/li>\n\n\n\n<li><strong>User Experience<\/strong>: Over-reliance on email or phone numbers for delivery could create issues, especially for users who don\u2019t have easy access to these communication channels.<\/li>\n\n\n\n<li><strong>Email address and\/or phone number verification<\/strong> should always be performed for any situation using these as part of Magic Link or OTP processing.<\/li>\n<\/ul>\n\n\n\n<p>Businesses must consider the challenges and implement safeguards to mitigate risks like delivery failures and security vulnerabilities, however, ultimately, adopting these passwordless workflows can greatly enhance both user satisfaction and overall security within a CIAM solution.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Passwordless authentication methods like Magic Links and OTPs provide substantial benefits in terms of user experience, security, and scalability in numerous workflow scenarios. By eliminating passwords, these methods reduce the risk of phishing and credential theft while providing seamless access to users.<\/p>\n","protected":false},"author":1,"featured_media":1958,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"authenticate":"","authentication":"","authenticatedMethod":"","authenticatedMember":"","authorizedPermissions":[],"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_links_to":"","_links_to_target":""},"categories":[14],"tags":[38,39],"class_list":["post-1936","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-authentication","tag-passwordless","tag-passwordlessscenarios"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/discovery-bucket-ha60ib.s3.eu-west-2.amazonaws.com\/wp-content\/uploads\/sites\/22\/2025\/03\/15114327\/image-36.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/posts\/1936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/comments?post=1936"}],"version-history":[{"count":21,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/posts\/1936\/revisions"}],"predecessor-version":[{"id":4960,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/posts\/1936\/revisions\/4960"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/media\/1958"}],"wp:attachment":[{"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/media?parent=1936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/categories?post=1936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discovery.cevolution.co.uk\/ciam\/wp-json\/wp\/v2\/tags?post=1936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}