The day October 18, 2016 close the old Redsys SHA 1. Date extended.
Few months that tried to close the old operation of payment module Redsys / Servired with SHA1 encryption, but now has become definitive and any trade that does not have the SHA 256 encryption, will no longer be able to charge credit card already, if you have the module Servidred / Redsys.
Therefore, the performance of some expert prestashop will be necessary if you need to change on this platform or other expert if any other.
E-Commerce Engineering Since we are already applying adjustments to the last cleintes who still had SHA1, you adaptadoles change to SHA 256 on average, within 2 working days.
For those who use Paypal, are also adapting their modules to SHA 256, where the hosting having prepared such adaptation, operate them correctly.