The Yahoo breach (see here for example) is almost yesterday news (today we are talking about DDoS: in 8 days the record went from 363Gpbs to 620Gpbs, and finally to almost 1Tbps, scary!), but I am now trying to picture such an event in view of the forthcoming European GDPR. My ideas are not too clear about what could be the consequences of the new Regulation (not of the data breach). I expect that in the next year before the Regulation will go into action, we’ll get a better understanding of its consequences.