New Delhi, May 21: Air India's passenger service system provider SITA faced a sophisticated cyberattack in February leading to leak of personal data of certain number of the national carrier's flyers, an official statement said on Friday.

Personal data -- including name, date of birth, contact information, passport information, ticket information and credit card data -- which was registered between August 11, 2011, and February 3, 2021, has been leaked of a certain number of Air India's passengers, the statement issued by the airline said.

"While we and our data processor continue to take remedial actions...We would also encourage passengers to change passwords wherever applicable to ensure safety of their personal data," it said. Airlines Data Breach: SITA PSS Servers of Air India And Star Alliance Hacked in Cyber Attack; Personal Data of 45 Lakh Fliers, Including Credit Card Details Compromised.

Data of 4.5 million passengers -- which includes Air India's passengers -- across the world has been "affected" due to the cyberattack on SITA, the statement said. SITA is based out of Geneva in Switzerland.

"Air India would like to inform its valued customers that its passenger service system provider has informed about a sophisticated cyber attack it was subjected to in the last week of February 2021," the airline said.

While the level and scope of sophistication is being ascertained through forensic analysis and the exercise is ongoing, SITA has confirmed that no unauthorised activity has been detected inside the system's infrastructure after the incident, it added.

"Air India meanwhile is in liaison with various regulatory agencies in India and abroad, and has apprised them about the incident in accordance with its obligations," the airline said. About 580,000 Frequent Fliers' Data Breached, Says Singapore Airlines.

Air India along with the service provider is carrying out risk assessment and would further update as and when it becomes available, it said. The airline said it has taken following steps after the data security incident: Secured the compromised servers, engaged external specialists of data security incidents, notified and in talk with the credit card issuers and reset the passwords of Air India frequent flyer programme.

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