The mobile and Internet provider Three UK, which has millions of customers nationally,Â has confirmed that theÂ personal information of customersÂ have been accessed by hackers in a recent cyber attack.
The National Crime Agency are investigating the attack and three people have been arrested.
Three have reassured customers that their details are not at risk. If you're a customer with Three:
If you think youÂ have fallen victim to fraud, report it to Action Fraud and get a police crime reference number.
Fraudsters often try to take advantage of a publicised large-scale cyber attack by sending emails or making calls that claim to be from the affected company to help protect you from the hackers.
Look out for targeted phishing emails. If you receive an email that claims to be from Three, never reply with your full password, login details or account details. Donâ€™t click on any links as you could end up downloading a virus.
Be wary of anyone calling asking for personal information, bank details or passwords. If in doubt, just hang up.
If you receive a call or email from Three, treat it with caution. Do not respond with personal information, particularly passwords or banking details.
To report a fraud and cyber crime and receive a police crime reference number, call us on 0300 123 2040 or use our online fraud reporting tool.