Encryption of data in a virtual private network (VPN) ensures that transmitted information is not readable, even if intercepted. Firewalls and routers protect access to data resources inside the network and do not protect traffic in the public network. Biometric and two-factor authentication, by themselves, would not prevent a message from being intercepted and read.

Methodology illustrates the process and formulates the basis to align expectations and the execution of the assessment. This also provides a picture of what is required of all parties involved in the assessment. References from other organizations are important, but not as important as the methodology used in the assessment. Past experience of the engagement team is not as important as the methodology used. Sample deliverables only tell how the assessment is presented, not the process.