I am all set to launch a website on which i have been working from months but now am afraid how safe it might be once it gets attention of hackers . As most of the code in website is in PHP,html,mysql i am posting this in this forum so that i can get suggestions from you all. Websites that are developed by Big companies might undergo testing from various testing tools , tests from hired ethical hackers ,etc, before getting launched where as what about websites that cant afford all those expensive methods. I understand that without undergoing all those procedures no website could be hacker safe but any suggestions about measures to be taken before launching a website would be appreciated.
Thank you all in advance.