2025 Indian bank-transfer document corpus — UpGuard S3 exposure context citing hundreds of KVB-tagged records in mixed dataset
Data compromised
Transfer paperwork and identity fields in cited bucket inventory
Technical writeup
Sep 2025 UpGuard research on a misconfigured Amazon S3 bucket described >273k files of Indian bank‑transfer and unclaimed‑property paperwork spanning dozens of institutions; the article’s tallies included ~307 rows referencing Karur Vysya Bank in sampled indices—not framed as an exclusive KVB core‑banking hack.
Root cause
Third-party or non-bank custodian storage misconfiguration (per researcher narrative)