A group of hackers leaked on Twitter the credit card information of over 14 thousand people who are clients of approximately 12 Chilean banks.

The document was shared by TheShadowBrokers and even though it was said that the data mainly belonged to Banco de Chile clients, it was later revealed that BancoEstado, BCI, Santander, Scotiabank and Falabella clients also appeared on the list.

Specifically, the group posted account numbers, followed by the cards’ expiration dates as well as their Card Security Code.

Nevertheless, according to the Superintendency of Banks and Financial Institutions, most of the accounts are no longer active. However, they did consider that around 10% of them were allegedly in danger.

“The Superintendency has contacted the banks, which have been instructed to take all the measures to safeguard clients and to clearly and swiftly get in touch with them to carry out all the necessary actions to clarify the origin of this incident”, they said in a statement.

Most banks contacted clients over the phone, blocking their cards immediately.

The hackers’ Twitter account has several messages against an unidentified government. “Your government pays to spy. Your government is targeted, you pay. The attack is our signature. We do not forgive. Freedom to: -dreex1 -B00du13 -Mr.H -TESTnull”, they wrote on 11 July.