JPMORGAN, CITI, MORGAN STANLEY ASSESS FALLOUT FROM SITUSAMC DATA BREACH

Summary from the TLDR InfoSec newsletter

SitusAMC, a mortgage data processor serving major banks including JPMorgan, Citi, and Morgan Stanley, suffered a data exfiltration attack discovered on November 12 that exposed corporate data and potentially customer PII, including SSNs, financial details, and employment records from loan applications. The attack used no ransomware, focusing purely on data theft. It was contained through credential resets, by disabling remote access, and by updating the firewall. Financial institutions must strengthen third-party risk management programs with written oversight policies per new SEC Regulation S-P amendments, as vendor breaches now account for 30% of financial sector incidents (up 15% YoY).