i have an old site, CodeIgniter, need you to scan thru the checkout php files and find malware or perhaps in the js or the ancient PayPal library we have in there. something is copying credit card numbers and selling them. many complaints last few weeks.
37 freelancers are bidding on average $156 for this job
we would be charging you at 45 USD per day. As you know the code being completely new to us, it might take couple of days. So get in touch only if you are ready to work on realtime costing rather than a fixed one.