Citigroup — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
6
occurrences
First Seen
November 23, 2025
Last Seen
May 13, 2026

Citigroup (Citi) is a leading global bank and financial services firm providing consumer and corporate banking, investment services, and wealth management.

Overview

Citigroup (Citi) is a leading global bank and financial services firm providing consumer and corporate banking, investment services, and wealth management. In cybersecurity, Citi has been implicated in fallout from a data breach tied to a hack at the real estate data provider SitusAMC, underscoring third-party risk and the potential for customer data exposure across major banks.

Related Threat Clusters

Recent Intelligence Reports

  • Cushman & Wakefield Hit With Class Action After Security Breach — Bisnow · May 13, 2026
  • Wall Street Banks Confront Fallout After Real Estate Data Hack — Bankingexchange · November 25, 2025
  • Vitalik comments on SitusAMC attack: Privacy is not optional, but a "hygiene habit" — Bitget · November 25, 2025
  • SitusAMC Cyber Breach Sparks Fallout for JPMorgan, Citi, and Morgan Stanley — Techrepublic · November 24, 2025
  • US banks scramble to assess data theft after hackers breach financial tech firm — Techcrunch · November 24, 2025
  • Possible Data Breach Hits Clients of Major US Banks — See.News · November 23, 2025

CVSS v3.1 Breakdown