A company that sends out SMSes and emails on Nedbank ’s behalf may have been hit by a data breach . The “ data security incident ” may have released the names , ID numbers , telephone numbers , physical and/or email addresses of 1.7 million Nedbank clients . In a statement on Thursday morning , Nedbank said that there was a “ data incident ” at the direct marketing company Computer Facilities , which sends emails and cellphone messages on its behalf . “ No Nedbank systems or client bank accounts have been compromised in any manner whatsoever or are at risk as a result of this data issue at Computer Facilities . ” Forensic experts have been appointed to conduct an extensive investigation and the bank is also working with the relevant regulators and authorities , Nedbank CEO Mike Brown said . Nedbank Group Chief Information Officer Fred Swanepoel said Computer Facilities did not have any links to Nedbank ’s systems . As a further precautionary measure , Computer Facilities ’ systems have been disconnected from the internet until further notice . Clients ’ bank accounts are not at risk and they do not need to take any further action other than continuing to be vigilant against attempts at fraud , Nedbank said . Two years ago , hackers seized insurance company Liberty 's email repository and demanded a " ransom " in exchange for the data . Other incidents included the theft of 60 million South Africans ’ personal data via a holding company for several real estate firms including Realty1 , ERA and Aida . The personal records of almost 1 million South African drivers were also reportedly compromised through the online traffic fine website ViewFine , while in 2017 Ster - Kinekor 's website was also exposed for lacking data security . At the end of last year , many South Africans who view pornography on their mobile phones were affected by a massive breach . A local company reportedly leaked a large database of web browsing history along with mobile - phone identifiers , and in some cases social media usernames , allowing some individuals to be identified – and linked to the pornography they viewed . ;