A. Utilizing proprietary penetration-testing tools that are not available to the public or to the client for auditing and inspection

B. Utilizing public-key cryptography to ensure findings are delivered to the CISO upon completion of the engagement

C. Failing to share with the client critical vulnerabilities that exist within the client architecture to appease the client's senior leadership team

D. Seeking help with the engagement in underground hacker forums by sharing the client's public IP address

E. Using a software-based erase tool to wipe the client's findings from the penetration tester's laptop

F. Retaining the SOW within the penetration tester's company for future use so the sales team can plan future engagements