Web security, authentication, and secure coding practices
92 posts
In the modern web landscape, security is not merely a feature; it is a fundamental requirement. The transition from HTTP to HTTPS has moved beyond being a "nice-to-have" for e-commerce sites to a baseline expectation for every application, including SPAs and APIs. However, simply enabling SSL cer...
For years, the prevailing security model for distributed systems was the "castle-and-moat" approach. We fortified our network perimeter with firewalls and intrusion detection systems, trusting that anything inside the castle walls was safe. However, the advent of microservices has eroded these bo...
SQL injection (SQLi) remains one of the most critical web application vulnerabilities, consistently ranking high on the OWASP Top Ten list. For intermediate and advanced developers, understanding the mechanics of an attack is no longer enough; you must instinctively know how to architect secure d...
In the landscape of modern application security, few topics cause as much confusion—or generate as many critical vulnerabilities—as the relationship between OAuth 2.0 and OpenID Connect (OIDC). While they are often mentioned in the same breath, they serve fundamentally different purposes. OAuth 2...
In the modern ecosystem of microservices and single-page applications (SPAs), Cross-Origin Resource Sharing (CORS) has become one of the most frequently misunderstood yet critical components of web security. If you have ever encountered a baffling error message in your browser console stating "Ac...
For traditional web and mobile applications, the OAuth 2.0 authorization code flow is the gold standard for secure authentication. However, this standard paradigm hits a significant wall when applied to "no-keyboard" or "limited-input" devices. Imagine trying to enter a 64-character alphanumeric ...
Despite being one of the oldest vulnerabilities in the OWASP Top Ten, Cross-Site Scripting (XSS) remains a persistent threat vector for modern web applications. For intermediate to advanced developers, moving beyond basic knowledge is crucial. We must understand not just how to sanitize input, bu...