TfL acknowledged that the cyber attack is more serious than originally disclosed, revealing exposure of personal data including passengers' names, phone numbers, and potentially bank account details.
The hack could have compromised as many as 5,000 bank account details linked to Oyster card activity, which raises serious concerns about the security of personal data.
NCA Deputy Director Paul Foster emphasized the disruption such attacks cause, stating that the rapid response by TfL has been crucial for the ongoing investigation.
Transport for London is making immediate changes to online security in response to the incident, and all affected passengers will be contacted directly.
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