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A limited cyberattack disrupted services at four major Iranian banks, but no customer information was accessed or deleted, Iran’s Bank Coordination Council said Sunday.
The attack affected Bank Melli, Bank Tejarat, Bank Saderat and the Export Development Bank of Iran, according to a statement carried by state-run media.
The council said the cyberattack targeted shared communications infrastructure used by the four banks, temporarily affecting some banking services.
Technical teams implemented preventive and protective measures after detecting unusual activity, the statement said.
The Bank Coordination Council said technical investigations determined that the disruption originated from a limited attack on communications systems shared by the four banks.
The affected institutions included the National Bank of Iran, also known as Bank Melli, along with Bank Tejarat, Bank Saderat Iran and Bank Tosee Saderat, or the Export Development Bank of Iran.
The council did not provide details about the source of the attack or identify those responsible.
Some services were temporarily disrupted while technical teams worked to secure the infrastructure.
Iranian banking officials said no unauthorized access to customer information had occurred.
They also said no banking data had been deleted during the attack.
“Detailed technical investigations indicate that this disruption was caused by a limited cyberattack on the shared communication infrastructure of these four banks,” the council said.
“Fortunately, no unauthorized access to customer information occurred and no information was deleted,” it added.
The council said all affected infrastructure systems were under the control of technical experts.
Recovery and security operations were continuing to restore normal banking services and protect the country’s financial infrastructure.
Technical teams remained engaged in preventive and protective work following the disruption.
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