Bank software vendor Marquis says more than 670,000 impacted by August breach

Marquis Software, a vendor that stores customer relationship and account information for banks and credit unions, suffered a breach discovered on August 14 in which attackers copied files exposing sensitive personal and financial data for an estimated 672,075 people (with some estimates ranging from ~788,000 to 1.35 million). Stolen data included names, addresses, phone numbers, Social Security and Taxpayer Identification Numbers, dates of birth, and account information; at least 74 financial institutions were identified as impacted and a source indicates Marquis may have paid a ransom, though no group claimed responsibility publicly.