Summary
- Environment: Financial services
- Operational impact: Employee and customer data across multiple countries exposed
- Financial impact: No financial figure is established by the reviewed source evidence
- Record status: Developing record. Reviewed September 19, 2026; updated as evidence emerges.
What happened
In 2024, Santander experienced an incident in its financial services environment. The retained source describes the attack path as follows: Stolen credentials were used against a Snowflake customer account that did not enforce MFA. [1]
The documented consequence was: Employee and customer data across multiple countries exposed. [1]
Impact
- Documented impact: Employee and customer data across multiple countries exposed. [1]
- No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.
Threat Group & Attack Vector
The retained source describes the attack path as follows: Stolen credentials were used against a Snowflake customer account that did not enforce MFA. The canonical record does not add intrusion steps beyond those supported by the source. [1]
Actors
- No threat actor group has been identified in the reviewed public evidence.
TTPs
- T1078 — Valid Accounts — mapped from the cited behavior. [1]
Response
The reviewed source does not describe containment, notification, or restoration steps in enough detail to summarize them responsibly.
This account is bounded to Statement on unauthorized database access. Details absent from that evidence are left unresolved rather than inferred. [1]