Hackers Claim Breaches at Bancolombia and Banco de Bogota
Hackers have claimed breaches at Grupo Bancolombia and Banco de Bogota, with purportedly stolen data posted on DarkForums by what researchers said appeared to be the same threat actor. According to reporting cited by Cybernews and SC Media, the alleged Bancolombia leak included screenshots of an internal content management system showing customer names and login/logout timestamps, as well as PDF files containing customer and advisor names, location details, and insurance plan information.
The alleged Banco de Bogota exposure reportedly involved nearly 30 records containing full names, physical addresses, and phone numbers. Researchers said the breach claims had not been independently verified, but warned that even limited personal data could be combined with information from other leaks to support phishing, social engineering, and other targeted attacks against affected customers.

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How this story unfolded
2 events from the most recent confirmed update back to the earliest known activity.
Researchers warn leaked bank data could enable phishing attacks
Cybernews reported that the alleged breach had not been verified but warned that exposed customer information could be cross-referenced with other breached data to support phishing, social engineering, and targeted intrusions against affected bank customers.
Threat actor posts alleged Colombian bank data on DarkForums
A threat actor allegedly listed purportedly stolen data from Grupo Bancolombia and Banco de Bogota on DarkForums. The Bancolombia material reportedly included screenshots of an internal CMS and PDF files with customer and advisor information, while the Banco de Bogota listing allegedly exposed about 30 records with names, addresses, and phone numbers.
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