FinCEN issued guidance clarifying that banks may share real-time fraud alerts and broader data with one another under Section 314(b) of the Patriot Act, with liability safe harbor protection. The guidance expands the scope of shareable information to include transaction alerts, suspicious activity indicators, mobile device identifiers, and internal paperwork.
If you are not already participating in Section 314(b) sharing, consider joining. Fraud is a team sport. Cooperation with other institutions can help stop scams before they spread.
FinCEN press release: https://www.fincen.gov/news/news-releases/fincen-issues-guidance-help-financial-institutions-eliminate-fraud-through