Black-box testing: Our testers will have no internal knowledge of your target system and testing will identify vulnerabilities that are exploitable from outside your network. Gray-box testing: Our testers will need a user account to your system and also an account with elevated privileges to your system White-box testing: Our testers will require full access to source code, architecture documentation and so forth. White-box penetration testing provides a comprehensive assessment of both internal and external vulnerabilities, making it the best choice