All penetration tests are carried out thoroughly and manually by Certified Ethical Hackers. Tests, where countermeasures have been taken, are delivered with a valid certificate. See here the different possibilities:
Hacking facts & figures
Hacking is a serious problem for companies.
days it takes on average for a hack to be discovered
% of all hacking attacks can be easily prevented
% of digital burglaries have been patchable for more than 1 year