Penetration testing, also known as pen testing or ethical hacking.
Network Penetration Testing
Despite the best efforts of your IT support professionals and the seemingly endless money you spend on security controls, there is no way to fully guarantee the effectiveness of any of it without putting it to the test.
A full penetration test will eliminate the guesswork out of the resultant systems and either provide assurance that your procedures, policies and systems are working the way you expect, or provide you with some early warning of impending dangers from internal and external threats to your systems that stand a chance of becoming exploits.
You will be provided with a fully documented account of all tests undertaken, the results, classifications and recommended actions.
Pen tests can be performed internally, externally or both, providing full coverage of all business IT systems from every angle.