AU Small Finance Bank probes potential customer data leak, says banking systems unaffected

What happened

AU Small Finance Bank said early findings show some vehicle loan customers onboarded through a third-party Salesforce-managed platform may have had data leaked. The bank said the breach happened on October 30, 2026. It is investigating with cybersecurity firms, has told the RBI and CERT-In, and says its own systems and banking services are unaffected.

Global impact / market context

The affected platform held only limited data on some vehicle loan customers, not the bank's own systems. For ordinary customers, the bank says banking services ran normally. The risk is that leaked personal data could be misused, and the bank must now investigate and report to regulators.

What to watch

1. Check whether the bank confirms exactly how many customers were affected and what data was involved. This matters because people need to know if their personal details are at risk.
2. Check for any update from the RBI or CERT-In on the investigation. This matters because regulators can confirm whether the leak is contained.
3. Check whether the bank says customers need to take any action, such as changing passwords or watching for fraud. This matters because ordinary people need clear steps to protect themselves.

Affected assets

• AUBANK

Evidence

• Infoway News — AU Small Finance Bank flags possible data leak involving vehicle loan customers 2026-11-03T04:32:46+00:00
• Infoway News — Insurers Inspect the Cover as Number of Cyberattacks Rises 2026-11-02T04:17:15+00:00
• Infoway News — AU SFB data leak: Salesforce says no vulnerability at its end 2026-10-31T10:15:33+00:00
• Infoway News — AU Bank Hit by a Likely Breach of 'Limited' Data 2026-10-31T04:12:47+00:00
• Infoway News — AU SFB probes potential vehicle loan data leak; says core systems unaffected 2026-10-30T13:16:30+00:00
• Infoway News — AU Small Finance Bank probes potential customer data leak, says banking systems unaffected 2026-10-30T11:55:38+00:00
• Incident timeline — AU Small Finance Bank flags possible data leak involving vehicle loan customers
• Incident timeline — Insurers Inspect the Cover as Number of Cyberattacks Rises
• Incident timeline — AU SFB data leak: Salesforce says no vulnerability at its end
• Incident timeline — AU Bank Hit by a Likely Breach of 'Limited' Data
• Incident timeline — AU SFB probes potential vehicle loan data leak; says core systems unaffected
• Incident timeline — AU Small Finance Bank probes potential customer data leak, says banking systems unaffected