Eurostar is forcing all of its customers to reset their passwords following an incident in which an unauthorised individual attempted to access user accounts.
Customers were notified Tuesday via an email that a threat actor may have used automated attempts to login with stolen user email and passwords that were obtained in an unknown method, according to The Telegraph.
"We’ve since carried out an investigation which shows that your account was logged into between the 15 and 19 October," the email said. "If you didn’t log in during this period, there’s a possibility your account was accessed by this unauthorised attempt."
The email also instructed customers to reset their passwords and check their accounts for unusual activity while ensuring them their payment card information hadn’t been compromised.
The breach has been reported to the Information Commissioner’s Office and comes just a week after British Airways announced the information of nearly 200,000 passengers was compromised.