There has recently been a vulnerablility discovered called POODLE which affects payment processors such as PayPal, Authorize.net, Linkpoint, etc. who have started disallowing the use of the industry standard version of SSL v3, This has caused problems during checkout.
Because of this, your customers may receive an error during checkout, like: "An error occurred when we tried to contact the payment processor. Please try again, select an alternate payment method, or contact the store owner for assistance. () - (35) error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number"
The solution provided by the Zen Cart development team is to change several files so that no SSL version is specified and Zen Cart can auto-negotiate the SSL to a higher level.
We will update all the necessary files so that your Zen Cart payment modules work properly.
Please be sure to click the link on the checkout success page to give us the information we need to install this fix. You will need to fill out the MODULE INSTALLATION form.