SumUp Solo and SumUp Plus card readers were used in the Zombie Card attack testbed. The terminals did not implement EMV's optional Relay Resistance Protocol (RRP), which could have detected the relay latency.
SumUp Solo and SumUp Plus card readers were used in the Zombie Card attack testbed. The terminals did not implement EMV's optional Relay Resistance Protocol (RRP), which could have detected the relay latency.