UK listed information and analytics group Relx bought online ID verification company ThreatMetrix for more than $800mn; the move will help to beef up Relx’s LexisNexis Risk Solutions unit; ThreatMetrix has built a database of 1.4bn unique online digital identities in more than 180 countries; Mark Kelsey, the head of Relx’s risk and business analytics division, tell the FT, “Bringing ThreatMetrix together with our own strengths in physical identity attributes will give our clients across all forms of commerce and geographies a more reliable, comprehensive approach to fraud and identity risk management.” Source.