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Ransomware

Ransomware is a harmful software that blocks access to files on a computer and shared drives. It often gets downloaded through links in emails, websites, or social media. After it’s downloaded, it locks the files, and a screen pops up asking for money to unlock them.


    • Don’t click suspicious links or download attachments from unknown emails.
    • If you get an email from someone you know, but the link or attachment seems odd, contact them to check if it’s real.
    • If you get a suspicious email about your Bank of Ireland accounts, forward it as an attachment to 365security@boi.com right away.
    • Be cautious on websites; avoid clicking on adverts as they may have harmful software.
    • Regularly update your antivirus software and operating system.
    • Back up your files often. Companies usually do this centrally.
    • Install security patches as soon as they’re available from your tech providers.
    • Make sure your firewall is on to protect your devices from internet threats.
    • If you are hit by ransomware, law enforcement advises against paying the ransom.
    • Disconnect infected computers from your network right away to stop the virus from spreading
    • Contact a security service provider or get professional help if needed.

Lost or stolen card?

As soon as you believe your card has been lost or stolen, please contact us as soon as possible via our Freephone numbers listed below. We’ll cancel your card as soon as you tell us it’s missing and get a new card issued to your address (the one we have on file for you) in 5 to 7 working days.

Fraud, suspicious activity or unauthorised transactions?

To report online fraud, suspicious activity, unauthorised transactions on your account or ATM fraud, please contact us as soon as possible via our Freephone numbers listed below.

Shared your online login details?

If you have shared your banking details in response to a suspicious email, text or call, please notify us as soon as possible via the Freephone numbers listed below.

Report a suspicious email or text

To report suspicious Bank of Ireland UK related emails or texts (both personal and business customers), send the suspicious email or text to 365security@boi.com

Emergency Contact Numbers

You can contact us 24 hours a day, 7 days a week on:

Calling from UK

Freephone: 0800 121 7790 (personal customers)

Freephone: 0800 032 1288 (Business On Line and Global Market Customers)

Calling from ROI

Freephone: 1800 946 764 (personal and business)

Calling from Overseas

Not Freephone: 00353 567 757 007

Please note: If we need to contact you about a potential fraud on your account, we will do this via a secure channel including, but not limited to, SMS or email.