--- title: PCI DSS 4.0 | Jeff Man description: "Jeff Man, is an Information Security advocate, InfoSec Curmudgeon, PCI QSA; Trusted Advisor and speaker with over 40 years of experience in cryptography, risk management, information security and penetration testing. As a National Security Agency cryptanalyst, Jeff invented the \"whiz\" wheel, a cryptologic cipher wheel used by US Special Forces as well as the first software-based cryptosystem produced by the NSA and pioneered the agency’s first “red team”. Jeff actively shares his unique and valuable knowledge as an international speaker, author contributor to Tribe of Hackers and podcast host for Paul’s Security Weekly. He gives back to the industry through sitting on advisory boards as well as inspiring youth through diversity, equity and inclusion initiatives and mentorship. Jeff remains a driving force in the industry, bringing his deep expertise and no-nonsense approach to his role as a PCI QSA and Trusted Advisor at Online Business Systems." --- [![Online Business Systems](https://info.obsglobal.com/hubfs/OBS%20+%20CGI%20LOGO%203.png)](https://www.obsglobal.com) Toggle navigation About ![](https://info.obsglobal.com/hubfs/About-Our_Approach.png) ###### Our Company ![](https://info.obsglobal.com/hubfs/Our-Community-Icon.png) ###### Our Community ![](https://info.obsglobal.com/hubfs/Executive-Team-Icon.png) ###### Executive team ![](https://info.obsglobal.com/hubfs/About-Partners.png) ###### Partners & Clients ![](https://info.obsglobal.com/hubfs/Imported%20sitepage%20images/About-News.png) ###### News ![](https://info.obsglobal.com/hubfs/Imported%20sitepage%20images/About-Events.png) ###### Events Services ### [DIGITAL TRANSFORMATION](https://www.obsglobal.com/digital-transformation/digital-advisory-services) ![Digital Advisory 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![](https://info.obsglobal.com/hubfs/b2b%20ecommerce%20icon.png) ###### B2B eCommerce ![](https://info.obsglobal.com/hubfs/Financial-Services-Icon.png) ###### Financial Services Contact ![](https://info.obsglobal.com/hubfs/ContactUs_Contact-Us-Form.png) ###### Contact Us ![](https://info.obsglobal.com/hubfs/ContactUs-Locations.png) ###### Locations × # PCI DSS 4.0 | Jeff Man # Our Blog The Online Blog is a source for insights, resources, best practices, and other useful content from our multi-disciplinary team of Onliners. Topics include Security, Service Management, Customer Experience, Technology and Business Consulting, and Cloud.   ## Understanding the Changes to Appendix A1: Multi-Tenant Service Providers [Continue Reading](https://info.obsglobal.com/pci-dss-4.0/multi-tenant-service-providers) ## Roles and Responsibilities | Who's Driving What? [Continue Reading](https://info.obsglobal.com/pci-dss-4.0/pci-roles-and-responsibilities) ## Incident Response - Unexpected PAN Identified [Continue Reading](https://info.obsglobal.com/pci-dss-4.0/incident-response-unexpected-pan-identified) ### Get latest articles directly in your inbox, stay up to date Subscribe to our blog ### Topics - Select a Topic ### Stay up to date Subscribe to our blog ### Subscribe Here! - [Blog](https://info.obsglobal.com/pci-dss-4.0) - / - Author ## Jeff Man Jeff Man, is an Information Security advocate, InfoSec Curmudgeon, PCI QSA; Trusted Advisor and speaker with over 40 years of experience in cryptography, risk management, information security and penetration testing. As a National Security Agency cryptanalyst, Jeff invented the "whiz" wheel, a cryptologic cipher wheel used by US Special Forces as well as the first software-based cryptosystem produced by the NSA and pioneered the agency’s first “red team”. Jeff actively shares his unique and valuable knowledge as an international speaker, author contributor to Tribe of Hackers and podcast host for Paul’s Security Weekly. He gives back to the industry through sitting on advisory boards as well as inspiring youth through diversity, equity and inclusion initiatives and mentorship. Jeff remains a driving force in the industry, bringing his deep expertise and no-nonsense approach to his role as a PCI QSA and Trusted Advisor at Online Business Systems. [mailto:jman@obsglobal.com](mailto:jman@obsglobal.com) ![Picture of Jeff Man](https://info.obsglobal.com/hubfs/Jeff%20Man%20-%20headshot.png) #### All Posts from Jeff Man [![](https://info.obsglobal.com/hubfs/PCI-4.0-Vulnerability-Scanning-Blog-Thumb-1200x628-1.jpg)](https://info.obsglobal.com/pci-dss-4.0/authenticated-vulnerability-scanning) tags [PCI](https://info.obsglobal.com/pci-dss-4.0/tag/pci) [PCIDSS4.0](https://info.obsglobal.com/pci-dss-4.0/tag/pcidss4-0) [PCI Assessment](https://info.obsglobal.com/pci-dss-4.0/tag/pci-assessment) [PCI DSS v4.0](https://info.obsglobal.com/pci-dss-4.0/tag/pci-dss-v4-0) ##### [Authenticated Vulnerability Scanning](https://info.obsglobal.com/pci-dss-4.0/authenticated-vulnerability-scanning) By [Jeff Man](https://info.obsglobal.com/pci-dss-4.0/author/jeff-man) on May 2, 2022 One of the most significant changes introduced in PCI DSS v4.0 involves the documented approach for performing internal vulnerability scans. The internal vulnerability scanning requirement... 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