CERT computer emergency response team CNI critical national infrastructure CRA communications (including broadcasting) regulatory authority/agency CSIRT computer security incident response team DDoS distributed denial of service -a type of online attack where a site and its ISP are flooded with traffic from other devices across the internet, slowing down or stopping the site from responding to legitimate users DPA data protection authority (or commission), referred to in some countries as an information or privacy commissioner, responsible for enforcing data protection and privacy laws DRE direct recording electronic (machine) -a type of voting machine that records a voter's choice in a polling station