U.S. financial institutions are intensifying cybersecurity measures as tensions with Iran escalate following the killing of Supreme Leader Ali Khamenei. The financial services industry remains on high alert for potential cyberattacks that typically surge during geopolitical conflicts. Industry executives and analysts report increased monitoring of threats targeting critical infrastructure, including payments systems, clearing operations, and trading platforms.

Cybersecurity has been a top priority for banks operating essential U.S. infrastructure, making them prime targets for hostile actors. The Securities Industry and Financial Markets Association (SIFMA) conducts annual exercises to ensure firms can withstand significant cyber emergencies. Todd Klessman, managing director for financial services cyber and technology at SIFMA, emphasized that the industry remains vigilant, especially when global cybersecurity risks are heightened.

U.S. intelligence assessments indicate Iran-aligned hacktivists could launch low-level cyberattacks, including distributed denial-of-service attacks that overwhelm targeted servers with internet traffic. While credit rating agency Morningstar DBRS suggests indirect risks like higher oil prices pose greater threats to global banks, it warns that cyber risks could also rise. Industry officials view cyberattacks as likely, with U.S. investment bank Lazard noting Iran's demonstrated willingness to deploy cyber capabilities against commercial targets, including financial systems.