Pasarela CAIXA Sermepa module error "Hacking Attempt"

[vidhis]

Hi All,

i have just installed the Pasarela CAIXA Sermepa visa/mastercard module.
Its quite easy to install even configure.
While executing the payment method,It will successfully returns to site but showing message "Hacking atempt!"
I checked that it wont resend the hidden variables value back and so that signature is not getting match.

Any kind help will appreciated.

Thanks.

[torvista]

I dont use the module but there is something similar in the Pasat 4b module I use.

There may be a check that the confirmed transaction information is coming back from a specific ip address (written in the module somewhere) that is of that gateway: if not, you get the hacking attempt message.