We have not reviewed any website builders and cannot make a recommendation. Based on the fact that this is the internet, you need not restrict yourself to a local geographic area. And if you have posed this question with your peers and not had a satisfactory response, ask your examiner. The examiner also won't endorse any one vendor, but they may be able to point you in the right direction such as to a bank that has a good site so that you might network there.
Also, search on penetration testers, and consider asking them who has a good record. I don't believe any are 100% but some are going to be more secure than others.