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Having contributed extensively during the incipient stages of the PHP language, Nicolas Chaillan ( is one of the top recognized PHP security experts in the world. Our experts at Prevent Breach, Inc. offer first-class PHP auditing services for any organization in the public or private sector.

Need a PHP source code review? Contact us now!








    Nicolas Chaillan

    Special Advisor for Cybersecurity

    Nicolas M. Chaillan was the Special Advisor for Cybersecurity at the Department of Homeland Security. Chaillan was also the Chief Architect for, the new robust, innovative and holistic .Gov cyber security architecture that mitigates cyber threats by leveraging best practices and implementable solutions with minimal impact to workforce efficiency.

    Chaillan is a technology entrepreneur, software developer, cyber expert and inventor. He is recognized as one of France’s youngest entrepreneurs after founding, WORLDAKT SARL at 15 years of age.

    With over 17 years of international tech, entrepreneurial and management experience, Chaillan is the founder of more than 12 companies, including AFTER-MOUSE.COM.

    Chaillan also is a leader in intellectual property, innovation, R&D and incubation as well as an expert in multiple technological fields such as cybersecurity, multi-touch, mobile solutions, Internet of Things, Big Data, Cloud Computing, and Wearables.

    Over the last eight years alone, he created and sold over 180 innovative software products to 40 fortune 500 companies.

    Chaillan is recognized as a pioneer of the computer language PHP. He also contributed to and managed several modules and PECL extensions, including SPPLUS and Cybermut—the first payment solutions developed for PHP.

    • PHP Code Inclusion and Evaluation
    • Cross Site Request Forgeries (CSRF)
    • Cross Site Scripting (XSS) vulnerabilities
    • JavaScript vulnerabilities
    • Input filtering analysis
    • Session security
    • Shell execution
    • Output analysis
    • Denial of service analysis
    • header and SQL injection
    • Script security analysis
    • Dirty data analysis

    We conduct a detailed assessment of your PHP developments, considering everything from optimizations to injections. We then analyze the threats and use our findings to design actionable controls and recommendations to implement.