“During this investigation, Landmark says it found evidence that the threat actor accessed some files during the attack that contained the personal information of 806,519 people.”
Landmark Admin spotted the intrusion on May 13 and the notice surfaced through Maine’s attorney general about five months later. The files held Social Security numbers, passports, bank accounts, medical data and life policy details. Landmark does back-office claims work for insurance carriers. 806,519 people lost their data to a vendor they never chose.