Zuma offered this personal information as rationale for extensive and expensive "security upgrading" to his private homestead. The upgrades have become known as the "Nkandla scandal" and prompted an investigation into whether Zuma misused public funds.
A report by Public Protector Thuli Madonsela found that Zuma "unduly benefited" from the $23 million renovations -- which included non-security features such as a swimming pool and amphitheater -- and recommended that he and his family pay back a portion of the costs.
An ad hoc committee is investigating Madonsela's findings.
Zuma has maintained he did nothing wrong, telling ANC members Monday:
"There were issues that called for security, particularly in my homestead. My homestead was burned twice during violence and secondly criminals came and raped my wife during the time I was still the MEC."
Zuma's revelation of his wife's rape comes days ahead of South Africa's general elections, which will determine whether Zuma's ANC party maintains power.