Chris Krautheim, Software Developer
Chris Krautheim, software developer, brings skills and teamwork from his time on Georgia Tech’s drumline and computer science classes to Raxis.
Penetration Testing Blog
Offensive security, written by the professionals who live it.
Cisco Releases Patch for CVE-2025-20188 – 10.0 CVSS
Critical Alert – Patch Immediately. Cisco Releases Patch for CVE-2025-20188 – 10.0 CVSS. This vulnerability affects Cisco Catalyst 9800 wireless controllers.
How AI Makes Phishing Easy & What to Watch For
Principal Penetration Tester Andrew Trexler got curious how easy it might be to customize a phish to a specific website using AI. The answer? Very easy.
Choosing a Penetration Testing Company: Part 1
Cole Stafford starts our three-part “Choosing a Penetration Testing Company” series by looking at what penetration testing is and the types of penetration tests.
PSE & Red Team Series: Physical Entry Bypass
Raxis lead penetration tester, Nathan Anderson, continues our PSE & Red Team series with a discussion on the tools and techniques to bypass entry controls.
Cool Tools Series: CeWL for Penetration Testing
Lead Penetration Tester Jason Taylor discusses how the CeWL Custom Word List generator can improve hashcat results for penetration testing.
AD Series: Using Evil-WinRM to Get NTDS Manually in Penetration Tests
Principal Penetration Tester Andrew Trexler’s Active Directory series is back, showing how to use Evil-WinRM to copy NTDS.dit manually in penetration tests.
Password Series: 8 Practical First Steps to Crack Difficult Passwords in Penetration Tests
From rulesets & hardware to wordlists and mask attacks, Lead Penetration Tester Ryan Chaplin shows how to crack difficult password hashes in penetration tests.
PSE & Red Team Series: OSINT & Reconnaissance
Raxis lead penetration tester, Nathan Anderson, begins our PSE & Red Team series discussing the importance of OSINT and reconnaissance to begin the assessment.
Tips for Scoping Your Penetration Test
Scoping your penetration test (especially your first one) can be daunting. Our team is always happy to help, and Brad Herring gives you a head start here.
Cool Tools Series: How Vim Powers Penetration Testing
Principal Penetration Tester, Andrew Trexler, dives into Vim, a powerful command line tool for text files, and shows useful commands for penetration testing.
Cybersecurity: It’s how to say “Yes.”
Contrary to common misconceptions, cybersecurity acts as a powerful enabler in the digital age, fostering innovation, driving business growth, and empowering organizations to harness technology’s full potential. By building trust, accelerating innovation, enabling emerging technologies, enhancing ef
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