1 in 5 compromised merchants get reinfected, average skimming operation lasts 13 days. 1 out of 5 breached stores were infected multiple times, some even up to 18 times. Counter measures taken by merchants and their contracted security firms often fail. MageCart operatives are getting more sophisticated in hiding their presence and ensuring future access. Skimmers persist on average for 12.7 days, while on average I saw reinfections occur within 10.5 days. Merchants need to step up their efforts in protecting their reputation and privacy of their customers.”]
Source: https://gwillem.gitlab.io/2018/11/12/merchants-struggle-with-magecart-reinfections/