This was the origin of the Bancolombia failure affecting millions of Colombians and businesses

TL;DR

Bancolombia's technological failure originated from a planned weekend upgrade and transition between its data centers.
The incident was caused by software components managing system operations, similar to an unsuccessful operating system update.
The problem replicated across backup systems, amplifying the impact on millions of customers.
The bank is collaborating with global technology providers, including IBM and Kyndryl, to resolve the issue.
Bancolombia is operating under a contingency plan, allowing limited services like transfers between Bancolombia accounts, cash withdrawals, and debit/credit card usage.
The bank apologizes to affected customers and emphasizes that the event is isolated and not related to previous interruptions.

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