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BreachesMay 5, 2026

‼️🇲🇽 IMSS Banco de Sangre, the blood bank of Mexico's Instituto Mexicano del Seguro Social, has...

ColdK3y claims breach of Mexico's IMSS blood bank with 3.4M donor records for sale.

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Summary

Mexico's Instituto Mexicano del Seguro Social (IMSS) blood bank, Banco de Sangre, has allegedly been breached by threat actor ColdK3y, with 3.4 million donor records offered for sale. The breach exposes sensitive healthcare and personal information of blood donors. This is a significant incident affecting critical healthcare infrastructure in Mexico.

Entities

Instituto Mexicano del Seguro Social (IMSS) (vendor)IMSS Banco de Sangre (product)ColdK3y (threat_actor)