Police stand outside the Bank of America building in Paris, Saturday, March 28, 2026. NICOLAS GARRIGA / AP

Citigroup and Goldman Sachs stepped up security in Paris on Thursday, April 2, telling staff they can work from home, after authorities thwarted an attack against another US financial institution that French prosecutors said might have been linked to a pro-Iran group. According to a French police source, Goldman Sachs in London received an email from the US authorities warning that a pro-Iranian group was threatening to attack US banks with explosive devices.

The security measures come more than a month after US-Israeli strikes on Iran sparked a regional war and unleashed global economic turmoil. The French government and security services have said that while they do not believe France itself is a target, US and Israeli interests on its soil might potentially be singled out. At the weekend, French authorities thwarted an attack on a Bank of America branch in Paris.

Citigroup said its employees in Paris and Frankfurt were working remotely "as a precautionary measure." "The safety of our employees is our number one priority, and we are taking the necessary measures to keep our employees safe," a spokeswoman told Agence France-Presse (AFP).