Защита от фишинга: Passkey, WebAuthn/FIDO2 и беспарольный вход в компании
Когда пользователи используют отпечаток пальца или вход по faceid, это часто воспринимается как «моя биометрия отправляется в сервис». На практике все…
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WebSocket Authentication Deep Dive — Tokens, Stateful Connections, and the CORS Bypass Nobody Warns You About
WebSocket Authentication Deep Dive — Tokens, Stateful Connections, and the CORS Bypass Nobody Warns You About WebSockets are powerful. They enable rea…
SSO Is More Than "Log In Once"
A practical look at identity, sessions, OAuth 2.0, OpenID Connect, and tenant isolation. Single Sign-On is often summarized as "log in once and access…
Auth in Next.js SaaS starters: redirect loops, OAuth callbacks, magic links, and session drift
A practical guide to auditing authentication in a Next.js SaaS starter before it breaks across preview URLs, production domains, and protected routes.…
known_hosts
1. Introduction As the golden standard of secure remote access , the Secure Shell (SSH) protocol has several layers of protection. One of them involve…
What Is ssh-agent
How to configure ssh-agent, agent forwarding, & agent protocol The ssh-agent is a helper program that keeps track of users' identity keys and thei…
What Is ssh-keygen
What Is ssh-keygen ? ssh-keygen is a tool for creating new SSH public-key key pairs. SSH Keys and Public Key Authentication The SSH protocol uses publ…
Building AutoStack.Identity: A Zero-Dependency .NET 10 Library for SAML 2.0, JWT, and XML Signing
The Problem That Started This We were building a healthcare connectivity platform — multi-tenant, Azure-hosted, integrating with enterprise IdPs via S…
JWT Token Refresh Patterns in React 19: Avoiding the Silent Auth Death Spiral
JWT Token Refresh Patterns in React 19: Avoiding the Silent Auth Death Spiral I've watched authentication break in production more times than I want t…
I built ZKP auth so passwords never touch your server
Every time you hear about a major breach, the headline is the same: "Millions of passwords exposed." Attackers get in, dump the database, and walk awa…
AWS IAM Deep Dive
Introduction Every action on AWS goes through an HTTPS API, and IAM (Identity and Access Management) sits in front of every single one of them . Once …
Stop Storing JWTs in localStorage: A Security Guide for Web Developers
When I first learned about JSON Web Tokens (JWTs), I thought I had authentication figured out. The tutorial showed me this simple line: localStorage .…
How to handle hardware attestation without locking out real users
Last month I got a bug report that made me close my laptop and go for a walk. A paying user couldn't log in. Their device was rooted? Not according to…
Laravel Now Has Native Passkeys: A Complete Guide to laravel/passkeys
Originally published at hafiz.dev For a long time, adding passkeys to a Laravel app meant reaching for a third-party package, assembling WebAuthn cere…
The Auth0 Pricing Trap: Why Upgrading to Paid Gives You Less
This article was originally published on Jo4 Blog . I was about to upgrade our Auth0 plan to get a cleaner domain. Then I looked at the pricing page. …
Deep Dive Two-Factor Authentication vs Passkeys: A Head-to-Head
Deep Dive: Two-Factor Authentication vs Passkeys – A Head-to-Head The authentication landscape is shifting rapidly: for decades, passwords paired with…