While the "dump" primarily refers to data in a cybersecurity context, it has coincided with a period of volatility for Bancolombia's stock (NYSE: ).
What happened: Threat actors on underground forums claim they exfiltrated and posted samples of data allegedly from Grupo Bancolombia (and separately from Banco de Bogotá). Reports (April 8–9, 2026) show screenshots of internal systems and small PDF datasets with names, locations, insurance-plan details and login timestamps; Banco de Bogotá samples reportedly included ~30 records with names, phone numbers and addresses. Independent verification of a full breach was not available at publication.
: On February 23, 2026, Bancolombia reported an EPS of $1.77 , missing the estimated $2.04 by -13.24% . This miss triggered a sharp price correction, with the stock falling -15.62% in the four days following the release. Grupo Cibest SA ADR (CIB) -2.60% today Closed: 23:00 • Disclaimer After hours: 23:05 Apr 17, 2026 16:35 - 23:05 Mkt cap$20.20B USD 52-wk high86.31 P/E ratio6.70 52-wk low39.49 Div yield8.24% Current Economic Indicators
Login and logout timestamps were also among the data points shared.
that occurred in early 2026, which the bank later clarified was a data government issue rather than a standard system crash. Key Events and System Issues (2025–2026) Data Government Issue (February 2026):
