![](https://eu-images.contentstack.com/v3/assets/blt6d90778a997de1cd/blt57f7bd56584e1441/64f0c95cc3efae01c9f0ebd4/John-Anderson.png?width=400&auto=webp&quality=80&disable=upscale)
John Anderson
Principal Security Consultant, Trustwave Spiderlabs
John Anderson is a Principal Security Consultant for Trustwave Spiderlabs, an advanced security team focused on penetration testing, incident response, and application security. John has been working full-time in penetration testing since 2003 for a wide range of commercial and public-sector clients including through the UK government CHECK scheme. Prior to this, John worked for several Internet service providers doing network design/build/management, as well as penetration testing of the existing customer base and in-house networks. John has published or contributed toward a number of open source development projects, including John the Ripper, Apache, Synscan, DNSAdmin-NG.
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