Cathay Pacific Airways Ltd (0293.HK) fell more than 6 percent on Thursday to a nine-year low, after data from about 9.4 million passengers from Cathay and its unit, Hong Kong Dragon Airlines Ltd, became known Late Wednesday night, Cathay said that the hackers had accessed 860,000 passport numbers and about 245,000 Hong Kong ID cards on 403 expired credit card numbers and 27 non-carded CVV (CVV) credit card numbers.
The company said it first detected suspicious activity on its network in March 2018, and investigations in early May confirmed access to certain personal information.
Hong Kong's Hong Kong Data Protection Commission expressed serious concerns over the Airline data protection breach on Thursday to notify passengers affected by the leak as soon as possible and to clarify details immediately.
Cathay Pacific shares slipped more than 6 percent to $ 9 HK on Thursday. 95, the lowest in nine years. In comparison, the benchmark Hang Seng Index (HSI) fell 2 percent.
It was not immediately clear who was behind the data breach or what the information could be used for.
Cathay told the Hong Kong police had been notified of the violation and there was no evidence that any personal information had been abused.
The data breach comes as the airline goes through a reversal that is designed to cut costs and increase revenue, after back-to-back years of losses, to compete better with competitors from the Middle East, mainland China and low-cost airlines can.
In August, Cathay Pacific recorded a narrower half-year loss on a sharp rise in fares and freight rates, signaling expectations for a better second half, despite the economic headwinds of growing tensions between the US and China.
The hack also comes more than a month after British Airways has apologized for theft of credit card details from hundreds of thousands of its customers Two-week period in attacking its website and app.
(Reporting by Anne Marie Roantree and Donny Kwok; Editorial Staff by Richard Pullin)