Vancouver's transit authority says it's working to determine how it became the target of a computer system attack and what information may have been affected.
TransLink CEO Kevin Desmond says in a statement that a forensic investigation will probe the malicious software known as ransomware, which demands a fee in order to make a system work again.
Customers have been unable to pay using credit or debit cards at Compass vending terminals or Tap-to-Pay fare terminals for days, but Desmond says that service is resuming.
He says TransLink uses a third-party to process fare payments and does not store or have access to payment information.