A rare bug has been detected in OScommerce. If the customer does not select a payment at checkout the browser is redirected to
This generates a +select+ injection hack detection in mmautoban.
To prevent this error edit your OSCommerce english.php file and change the error statement from
Please Select to Please Pick
this will prevent customers from getting banned.
It is unknown if other such errors exist in other places or other programs.
If you see any please report them.