Iran’s Banking System Hit by Limited Cyberattack Disrupting Four Major Banks

On Saturday, June 13-14, a limited cyberattack targeted the shared communications platform used by four state-owned Iranian banks—Bank Melli, Bank Tejarat, Bank Saderat, and the Export Development Bank of Iran. Technical teams detected unusual activity, activated preventive protocols, and temporarily halted mobile and online banking, ATMs, POS terminals and some card services. The Banking Coordination Council said no unauthorized access to customer data occurred and no information was deleted.

ReutersCyberattack causes technical glitches at four Iranian banksIran banks hit by major cyber attackFour Iranian Banks Hit by ‘Limited’ CyberattackCyberattack disrupts 4 banks, says Iran

The outage coincided with the final stage of U.S.–Iran peace talks mediated by Qatar and Pakistan, prompting concerns that cyber pressure could affect the negotiations.

Four Major Iranian Banks Hit by Cyberattacks, Temporary Service Disruptions Occur

Four banks—Bank Melli, Bank Tejarat, Bank Saderat, Export Development Bank of Iran—were affected; disruptions spanned five service categories: mobile banking, online portals, ATMs, POS terminals and card processing.

Cyberattack causes technical glitches at four Iranian banks

All four banks share a single telecommunications layer that routes transaction data nationwide, making the network a single point of vulnerability.

Cyberattack causes technical glitches at four Iranian banks

Customers experienced outages in mobile and online banking, ATM withdrawals, POS transactions and some card functions. The Council’s probe identified a limited cyberattack on the shared network; no malware or data exfiltration was found.

Cyberattack causes technical glitches at four Iranian banks

The Banking Coordination Council said it acted swiftly to protect data and restore services, and that the infrastructure is now under expert control. Qatasi, secretary of the Coordinating Committee of state-owned banks, confirmed repair measures are underway. Authorities have not identified the attackers or disclosed their methods.

Iran banks hit by major cyber attack

Patrons reported delayed transactions and unavailable ATMs, prompting complaints on social media. The Council apologized for the inconvenience and pledged to restore services as quickly as possible.

Reuters

All reports agree no customer data was compromised and the attack was limited. However, source 2 lists National Bank of Iran and Bank Tosee Saderat among the affected institutions, while other sources name Bank Melli, Bank Tejarat, Bank Saderat and the Export Development Bank of Iran, indicating a naming discrepancy. No source identifies the attackers or their methods.

Reuters

• “Technical teams immediately implemented the necessary preventive and protective measures to protect customer data and the country's banking infrastructure after identifying unusual signs,” — Banking Coordination Council statement

Cyberattack disrupts 4 banks, says Iran

• “Technical assessments confirmed that no unauthorized access to customer data occurred and no data leaks have been detected.” — Council announcement

Four Iranian Banks Hit by ‘Limited’ Cyberattack

• “So far, no customer data has been accessed without authorization, and there has been no data breach.” — Qatasi, secretary of the Coordinating Committee

Cyberattack causes technical glitches at four Iranian banks

• “Technical investigation indicates that this problem was caused by a limited cyberattack on these four banks and fortunately there has been no unauthorized access to customer data and no information leak,” — Council briefing

Iran confirms limited cyberattack on four banks

Technical teams are hardening the shared network, adding security layers and monitoring for further anomalies. The incident highlights the vulnerability of centralized banking infrastructure and may shape Iran’s future cyber-defense policies as peace talks continue.

Iran confirms limited cyberattack on four banks