The unsecured bucket is apparently still exposing data.
Around 2.9 million files were exposed over a seven year period by a Mexican financial services and affordable phone plan provider.
According to Cybernews, the files were exposed between 2017 and 2024, and contained some Know Your Customer documents. The files were exposed due to a misconfigured cloud storage bucket.
However Miio is yet to close the unsecured bucket, three months after being informed by researchers, who also noted that their November alert to Mexico's Computer Emergency Response Team has not yet been acknowledged.
Included in the leaked files were individuals' IDs, passports, driver's licenses, voter IDs, and selfies.
Cybernews researchers’ said: "In the context of Miio’s role as a telcobank serving a wide base of customers, such a leak would undermine trust in their ability to safeguard sensitive data, exposing their users to severe financial and personal risks.”
Written by
Dan Raywood
Senior Editor
SC Media UK
Dan Raywood is a B2B journalist with more than 20 years of experience, including covering cybersecurity for the past 16 years. He has extensively covered topics from Advanced Persistent Threats and nation-state hackers to major data breaches and regulatory changes.
He has spoken at events including 44CON, Infosecurity Europe, RANT Conference, BSides Scotland, Steelcon and ESET Security Days.
Outside work, Dan enjoys supporting Tottenham Hotspur, managing mischievous cats, and sampling craft beers.
