“We were meticulous is the control of our defense systems and we purposefully throttled some areas where we believed the risk was high.”
The sustained and heavy nature of the attacks resulted in very high network traffic as Telkom’s firewalls worked to repel the attacks.
“This very robust defense strategy did result in the degradation of the performance of some of our service platforms, at different times throughout the day,” she said.
“We regret the inconvenience this caused some of our customers. We are confident we took every step necessary to protect our data and our customers from any exposure to this pernicious virus.”
O’Sullivan said that despite significant and sustained attack, the “WannaCry” ransomware virus did not infect or encrypt any information or files on any Telkom assets.
“It is important to note that customers must install the corrective steps. Even though the current variant of the virus is unable to initiate the ransomware, devices and systems remain vulnerable until they are patched,” Telkom said.