Point72, Citadel Face AI Vishing Wave as Two Sigma Says $75 Billion Firm Blocked Attempt
Updated
Updated · InvestmentNews · Aug 5
Point72, Citadel Face AI Vishing Wave as Two Sigma Says $75 Billion Firm Blocked Attempt
3 articles · Updated · InvestmentNews · Aug 5
Summary
Point72, Millennium, Two Sigma and Citadel were targeted in recent days in a coordinated AI-powered vishing campaign aimed at extracting employee credentials or system access.
Point72 told investors its initial review found no client data stolen and the incident remains under review, while Two Sigma said it blocked the attempt and saw no impact on data or systems.
FINRA has contacted member firms about the attempted breaches and can use its Financial Intelligence Fusion Center, launched in March 2026, to share fraud threat intelligence and coordinate responses.
Cybersecurity specialists told Bloomberg AI has sharply lowered the cost of targeted attacks, letting hackers clone voices and scale campaigns from dozens of firms to potentially 1,000.
The hedge-fund attacks fit a wider 2026 surge in AI-driven social engineering across finance, following similar June attacks on law firms and breaches affecting wealth managers including Mariner.