A new Grelos skimmer variant tied to Magecart Group could potentially lure online shoppers to fill out phony payment forms over the upcoming holidays.

A unique cookie could allow attackers to connect to a recent variant of the Grelos skimmer then to an even newer version that uses a fake form to steal payment data from victims, according to a blog from researchers at RiskIQ.  

Domains related to the cookie, they said, have compromised dozens of sites so far.

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