ZA: Nedbank warns clients after data breach – 1.7 million clients potentially affected
Nedbank says it has investigated a data security issue that occurred at the premises of a third-party service provider, namely Computer Facilities – a direct marketing company that issues SMS and email marketing information on behalf of Nedbank and a number of other companies.
A subset of the potentially compromised data at Computer Facilities included personal information (names, ID numbers, telephone numbers, physical and/or email addresses) of some Nedbank clients, the bank said.
Read more on BusinessTech. From the coverage, I found it impossible to determine conclusively what kind of breach or incident occurred at the direct marketing firm, but it sounds like it might have been unintended exposure that Nedbank detected in a search. Perhaps you will be able to figure it out when you read the coverage.