Authentication

OpenID Single Sign-On (SSO) is a protocol that allows users to authenticate once and gain access to multiple applications without re-entering their credentials. It leverages the OpenID Connect (OIDC) standard, which is built on top of OAuth 2.0, to provide a secure and standardized way of handling user identities and access control. What is OpenID Connect? OpenID Connect is an identity layer on top of the OAuth 2.0 protocol. While OAuth 2.0 focuses on authorization and granting permissions to access resources, OpenID Connect provides a way to verify the identity of the end-user based on the authentication performed by an authorization server. This makes it ideal for single sign-on solutions. ...

Why This Matters Now: The increasing complexity of modern applications has led to a proliferation of custom authentication solutions, often introducing security vulnerabilities. WorkOS’s release of auth.md addresses this by providing a standardized, secure method for agent registration and authentication, ensuring compliance and reducing risk. 🚨 Breaking: Custom authentication solutions can introduce significant security risks. Adopting auth.md helps mitigate these risks by leveraging established OAuth standards. 30%Custom Auth Vulnerabilities 90%Adoption Rate of OAuth Introduction to auth.md As applications grow more complex, managing identities and access becomes increasingly challenging. Custom authentication solutions are common but often lead to security issues due to improper implementation. Recognizing this, WorkOS has developed auth.md, an open agent registration protocol built on OAuth standards. This protocol simplifies the process of registering and authenticating agents while ensuring security and compliance. ...

JWT decode in React Native involves parsing JSON Web Tokens (JWT) to extract payload data for authentication and authorization purposes. This process is crucial for validating user sessions and ensuring that only authorized users can access certain parts of your application. What is JWT decode in React Native? JWT decode in React Native is the process of extracting the payload from a JSON Web Token. JWTs are compact, URL-safe tokens that are commonly used for transmitting information between parties as a JSON object. They are widely used in web applications for stateless authentication and information exchange. ...

Why This Matters Now In the wake of high-profile data breaches like the Capital One incident in 2019 and the recent LinkedIn data leak in 2023, the landscape of account takeover (ATO) has shifted dramatically. Attackers are no longer content with sweeping, broad attacks that target millions of users; they’re honing their strategies to hit specific, valuable targets with surgical precision. This evolution from the “hammer” to the “scalpel” demands a reevaluation of our security practices, especially in the realm of Identity and Access Management (IAM). ...

Agentic AI Authentication is a method for securing AI agents in enterprise systems by ensuring they authenticate and authorize themselves securely before accessing resources. This is crucial for maintaining data integrity, preventing unauthorized access, and ensuring compliance with regulatory standards. What is Agentic AI Authentication? Agentic AI Authentication involves setting up secure mechanisms for AI agents to authenticate and gain authorized access to enterprise systems. Unlike traditional user authentication, which involves human interaction, AI authentication requires automated processes that can handle authentication tokens, certificates, and other security credentials efficiently. ...

MFA bypass attacks are a significant threat to modern identity and access management (IAM) systems. These attacks aim to circumvent multi-factor authentication (MFA) mechanisms, allowing attackers to gain unauthorized access to systems and sensitive data. In this post, we’ll explore what MFA bypass attacks are, understand the common techniques used by attackers, and discuss how to implement phishing-resistant authentication to protect your organization. What is MFA bypass attack? An MFA bypass attack is a cyberattack aimed at circumventing multi-factor authentication mechanisms to gain unauthorized access to systems or data. Attackers exploit vulnerabilities in MFA implementations or trick users into revealing their second factor through social engineering tactics. ...

PingOne DaVinci Flow Designer is a visual tool for designing and managing identity orchestration workflows. It allows you to create complex authentication and authorization processes without writing extensive code, making it accessible even to those with limited programming experience. In this tutorial, we’ll walk through creating a basic identity orchestration flow, configuring actions, and testing the flow to ensure it works as expected. What is PingOne DaVinci Flow Designer? PingOne DaVinci Flow Designer is a visual tool for designing and managing identity orchestration workflows. It provides a drag-and-drop interface to build authentication and authorization processes, making it easier to manage complex identity flows. ...

Passkeys replace passwords with FIDO2 WebAuthn credentials — cryptographic key pairs where the private key never leaves the device. Users authenticate with biometrics (Touch ID, Face ID, Windows Hello) or hardware keys (YubiKey, Titan key) instead of passwords. This guide covers production implementation with @simplewebauthn/server, Keycloak WebAuthn flow setup, and error debugging. For protocol context, see our FIDO vs FIDO2 explainer. What is FIDO2 WebAuthn? FIDO2 WebAuthn (W3C spec + CTAP2 protocol) is the standard that enables passkeys. The browser’s navigator.credentials.create() API talks to a local authenticator via CTAP2 over USB/NFC/BLE or the OS platform (TPM, Secure Enclave). The server (Relying Party) verifies the response using the credential’s public key. Unlike FIDO U2F (security-key-only second factor), FIDO2 supports first-factor passwordless login with discoverable credentials stored in platform authenticators. ...

Microservices communicate over the network dozens or hundreds of times per second. Without mutual authentication, any compromised pod inside your cluster can impersonate a legitimate service, intercept traffic, or make unauthorized calls. mTLS (mutual TLS) closes this gap by requiring both ends of every connection to present a valid X.509 certificate — no certificate, no connection. This guide covers mTLS from first principles through production deployment: how the handshake works, enabling it in Istio, automating certificate lifecycle with cert-manager, implementing SPIFFE/SPIRE workload identity, and debugging the errors you’ll inevitably encounter. ...

ForgeRock SSO is a single sign-on solution that provides secure access management for web and mobile applications. It allows users to authenticate once and gain access to multiple applications without re-entering their credentials each time. This guide will walk you through implementing ForgeRock SSO, covering realms, identity providers, service providers, and policies. What is ForgeRock SSO? ForgeRock SSO is a comprehensive identity and access management (IAM) solution that simplifies secure access to applications. It supports various protocols like SAML, OAuth 2.0, and OpenID Connect, making it versatile for different environments. ...

Why This Matters Now: The rise of B2B SaaS has brought unprecedented challenges to identity and access management (IAM). As businesses increasingly rely on external partners and third-party services, securing access while maintaining flexibility has become a top priority. The recent surge in cyberattacks targeting SaaS platforms underscores the critical need for robust Single Sign-On (SSO) solutions. Organizations that fail to implement comprehensive SSO features risk exposing sensitive data and disrupting business operations. ...

Why This Matters Now In the wake of recent high-profile security breaches, companies are investing heavily in robust Identity Providers (IdPs) and multi-factor authentication (MFA) solutions. However, these investments can be undermined by a phenomenon known as MFA Fatigue. Attackers exploit human psychology to bypass MFA by overwhelming users with repeated authentication prompts, leading to compromised accounts. This became urgent because traditional MFA methods like simple “Approve/Deny” buttons are no longer sufficient to protect against sophisticated attacks. ...

Client Initiated Backchannel Authentication (CIBA) is a protocol extension for OAuth 2.0 and OpenID Connect that enables clients to request user authentication without immediate user interaction. This is particularly useful in scenarios where the user is not present at the time of authentication, such as in smart home devices, IoT applications, or background services. What is CIBA? CIBA allows clients to initiate an authentication request to an Authorization Server (AS) without requiring the user to be present at the time of the request. The AS then notifies the user out-of-band (e.g., via SMS, email, push notification) to authenticate. Once the user authenticates, the AS sends an authentication result back to the client. ...

OAuth 2.1 is an updated version of the OAuth 2.0 authorization framework, providing enhanced security features and clarifications. It addresses some of the limitations and ambiguities present in OAuth 2.0, making it more robust for modern applications. In this guide, we’ll walk through implementing OAuth 2.1 with Spring Security 6, covering client setup, authorization server configuration, and resource server integration. What is OAuth 2.1? OAuth 2.1 builds upon OAuth 2.0 by introducing several improvements, such as Proof Key for Code Exchange (PKCE) for public clients, safer handling of authorization codes, and more secure token exchange processes. These enhancements aim to protect against common vulnerabilities like authorization code interception and client impersonation. ...

Passkeys are a game-changer in the world of identity and access management (IAM). They provide a secure, passwordless method of authentication by leveraging hardware security modules (HSMs) to store cryptographic keys. This post will guide you through deploying passkeys in large-scale enterprise environments, covering everything from implementation strategies to security considerations. What is a passkey? A passkey is a strong, private cryptographic key stored in a hardware security module that provides secure authentication without the need for passwords. Passkeys eliminate the risks associated with password reuse, phishing attacks, and weak password policies. They are supported by modern operating systems and browsers through the Web Authentication (WebAuthn) API. ...

In early March 2026, two events put MFA bypass back in the spotlight. Europol dismantled Tycoon 2FA — the world’s largest phishing-as-a-service platform — while a new suite called Starkiller demonstrated that AitM phishing has evolved from a sophisticated nation-state technique into a commodity SaaS product anyone can buy. The message is clear: if your organization relies on TOTP, push notifications, or SMS for MFA, it is not phishing-resistant. Here’s how these attacks work and what actually stops them. ...

What is PingOne AIC API? PingOne Advanced Identity Cloud (AIC) API provides REST endpoints for managing identity and access in enterprise environments. It lets you automate user provisioning, manage groups, and handle authentication flows programmatically. I’ve used it extensively to integrate identity management into various applications, and it’s been a game-changer for streamlining IAM processes. How to Authenticate with PingOne AIC API Authentication is typically done using OAuth 2.0 with the client credentials flow. This flow is for service-to-service auth. No users, just machines talking to machines. ...

Customizing end user login pages in ForgeRock Identity Cloud involves modifying the appearance and behavior of the login interface to match your organization’s branding and requirements. This process not only enhances the user experience but also ensures that your authentication flows align with your security policies. What is customizing end user login pages in ForgeRock Identity Cloud? Customizing end user login pages in ForgeRock Identity Cloud allows you to tailor the authentication interface to reflect your brand identity while maintaining the robust security features provided by the platform. This customization can include changes to the layout, colors, logos, and even the redirection logic after successful authentication. ...

JWT algorithm confusion attacks are back — and Q1 2026 has seen a cluster of critical CVEs across major frameworks and libraries. The root cause is always the same: trusting the attacker-controlled alg field in the JWT header to select the signature verification algorithm. This guide explains exactly how these attacks work, walks through the three most impactful 2026 CVEs, and gives you concrete, language-specific fixes you can apply today. ...

Integrating Keycloak with Spring Boot for OAuth2 resource server protection is one of the most searched tasks in the IAM developer community — yet most tutorials stop at “hello world” level. This guide covers production-grade integration: JWT validation, Keycloak realm role extraction, multi-tenant setups, and integration testing strategies. Clone the companion repo: All working code in this guide is available at github.com/IAMDevBox/keycloak-spring-boot-oauth2 — includes Docker Compose for Keycloak, complete Spring Boot 3.x application, and integration tests with Testcontainers. ...