US financial sector on heightened cyberattack alert — banks stepping up monitoring for Iran-affiliated threats with potential for operational disruption

US financial services industry is on heightened alert for Iranian cyberattacks, with banks and financial institutions stepping up monitoring and defensive measures. Reuters reports the greater threat is not data breach but coordinated psychological cyber operations designed to make employees stop trusting systems — campaigns targeting operational confidence rather than just stealing data. Unit 42 (Palo Alto Networks) is actively tracking Iranian-affiliated phishing, hacktivist activity, and cybercrime spikes. Fortune reports concerns about physical disruption potential from cyber campaigns. This represents direct US homeland threat to financial infrastructure during the conflict. Timing coincides with CISA leadership vacuum (acting director reassigned, partial shutdown) creating degraded federal cyber defense coordination precisely when financial sector faces heightened Iranian cyber threat. Impact: US banking and financial markets have operational exposure during conflict.