Transport for London (TfL) has called in the National Crime Agency following a huge cyber attack, while also sending an important update to millions of commuters.
Technology experts are trying to determine the damage caused by the breach.
But TfL said the early indications are that customer data has not been compromised by the cyber attack, adding the transport network and other services have not been affected.
TfL’s Chief Technology Officer Shashi Verma said: “We have introduced a number of measures to our internal systems to deal with an ongoing cyber security incident.
“The security of our systems and customer data is very important to us and we will continue to assess the situation throughout and after the incident.
“Although we’ll need to complete our full assessment, at present, there is currently no evidence that any customer data has been compromised.
“There is currently no impact to TfL services and we are working closely with the National Crime Agency and the National Cyber Security Centre to respond to the incident.”
The BBC reported that employees have been asked to work from home if possible and that the cyber attack ihas mainly affected the transport provider’s backroom systems at the corporate headquarters.
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