Paragon Initiative Enterprises Blog

The latest information from the team that develops cryptographically secure PHP software.

Preventing SQL Injection in PHP Applications - the Easy and Definitive Guide

It's 2015; there's no excuse for writing code vulnerable to SQL Injection any more


If You're Typing the Word MCRYPT Into Your PHP Code, You're Doing It Wrong

Alternative title: "Libmcrypt considered harmful." You should use libsodium if you can, or OpenSSL if you can't.


How to Teach Yourself Application Security

We're maintaining a curated appsec reading list on Github -- check it out.


Using Encryption and Authentication Correctly (for PHP developers)

A developer's short guide to encryption, authentication, and authenticated encryption with examples in PHP


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Our team of technology consultants have extensive knowledge and experience with application security and web/application development.

We specialize in cryptography and secure PHP development.

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Our Security Newsletters

Want the latest from Paragon Initiative Enterprises delivered straight to your inbox? We have two newsletters to choose from.

The first mails quarterly and often showcases our behind-the-scenes projects.

The other is unscheduled and gives you a direct feed into the findings of our open source security research initiatives.

Quarterly Newsletter   Security Announcements