Lot of equal carts with same product are creating whole day

[aprex]

Hi.

I'm currently experincing a big problem with spam, that goes to my Prestashop store.

At first my hosting provider noticed a huge grow of spam requests to the website which causes grow of CPU minutes usage, which is not acceptable.

Partly I solve problem by denying access for certain IP addresses.

 

Another issue is that there is a lot of spam carts in my back-office. They consists of one and the same product and are creating every 5-10 minutes!

It calls queries like this /cart?add=1&id_product=6367&ipa=4066&token=e1ef5a7aa4a417494613d548ff28ea32 

few hundred times per day, which also give me this resources usage grow.

 

Have anyone experienced such problem and how this could be solved?

Thanks in advance for any ideas.