We just completed functionality testing of our new e-commerce site and going to launch.We are accepting credit card payments. I'm really concerned about it's security.What are the precautions to be taken? I'm not so good at web security. Please advice.
closed as too broad by Adnan, D3C4FF, Gilles, Xander, TildalWave Aug 30 at 14:38
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Yeah.... you don't do something like that yourself when "I'm not so good at web security." Have a look at PCI-DSS and the horrible horrible things that you can be liable for if you don't do things properly.
Instead, you should use something like Authorized.net to take care of handling that part for you.
Also, I really hope that you are using an existing e-commerce solution instead of writing your own. The amount of things that you can screw up when you have no idea what you are doing is so scary it's not even funny.