What is certificate pinning?

If you know about how TLS works, you know the system leans heavily on Certificate Authorities (CAs) to vouch for a server’s identity. That trust model works well most of the time, but it has a weak point: any CA in the hundreds trusted by your browser or operating system can issue a valid certificate…

What are CSRF tokens?

If you’ve ever dug into web security or looked through the source code of a login form, you’ve probably noticed a hidden field with a long, random-looking string tucked inside it. That’s a CSRF token — and while it might seem like a minor implementation detail, it’s one of the unsung heroes of web application…

Subject Alternative Names (SANs) in Digital Certificates

When it comes to digital certificates, the Subject Alternative Name (SAN) extension plays a crucial role in how modern systems authenticate and communicate securely. Although the Common Name (CN) field traditionally carried the hostname of a server, today it’s the SAN extension that browsers and applications actually pay attention to. In fact, industry standards have…

IAM vs PAM vs IGA – what is the difference?

Identity security is now a cornerstone of enterprise cyber defence, particularly in the UK where regulatory pressure and threat levels continue to rise. Security teams often hear three related but distinct terms: IAM (Identity and Access Management), PAM (Privileged Access Management), and IGA (Identity Governance and Administration). While they overlap, each addresses different layers of…

Refresh JWTs are subject to compromise

Refresh JSON Web Tokens (JWTs) are a crucial part of maintaining user authentication sessions without requiring frequent logins. However, if not implemented securely, refresh tokens can become a major security risk. Here are some common ways refresh JWTs can be compromised: 1. Token Theft via Storage Vulnerabilities Storing refresh tokens improperly is one of the…

JWT

JSON Web token (JWT) is an open standard (RFC-7519) that defines a compact self-contained way for securely transmitting information between parties as a JSON object. The format is intended for use in space constrained environments, such as HTTP authorization headers and URI query parameters. JWTs encode claims transmitted as JSON objects contained as a payload…