[JURIST] Data services group LexisNexis [corporate website] said Tuesday that personal information of 310,000 US citizens may have been stolen, significantly more than the 30,000 announced in March. An investigation by parent company Reed Elsevier [corporate website] found that company databases had been breached 59 times with stolen passwords, with personal information including social security numbers and addresses possibly stolen. Lexis said it was beginning to notify those not in the original group of 30,000. No reports of identity theft have been reported from that initial group, but the company is offering those whose information was stolen free credit monitoring and fraud insurance. Similar break-ins have been reported [JURIST report] by other data companies in recent months. Read a Reed Elsevier press release and a LexisNexis press release. Reuters has more.