Phishing phone calls in the name of Microsoft technical support

People in Finland have recently received a lot of phishing phone calls in the name of Microsoft technical support. The calls may come from a Finnish or a foreign number.

During these phone calls, the caller attempts to get the person who answered the call to install applications to a device such as a computer, tablet or smart phone by claiming that the device has problems with information security. This form of phishing is common abroad.

Never give your user identifiers or passwords to anyone

We would like to remind our customers that these kind of phone calls are always scams. Microsoft will never call to users unless the users themselves have first requested support from Microsoft. You should never give your online bank user identifiers or passwords to anyone who contacts you because those who ask for this information are always scammers.

With the help of the applications they want people to install, the scammers are trying to get access to the device and to obtain and use customers’ online bank user identifiers or payment card details. The scammers may also ask the person who answered the call to disclose information or a picture of their personal ID document by giving some excuse for it. Scammers use the information they have obtained to transfer money from accounts or to make unauthorised payments with payment cards.

What to do, if you suspect that you have been the victim of a phishing phone call

If you have received this kind of a phone call and installed an application to your device because the caller requested you to do so, here’s what you should do:

  • Deactivate your online bank user identifiers and all your payment cards by calling OP Customer Service at 0100 0500.
  • Outside the telephone service hours, deactivate your user identifiers by calling the OP Deactivation Service number at +358 100 0555 (24/7). Be sure to also call OP Customer Service during service hours to report the incident.
  • When you call our telephone service, remember to say that the phishing phone call was made by someone who claimed to be from Microsoft technical support and that you installed new applications to your device because of it.
  • Check if there are any debits to your account or payment card that you do not recognise. Report them, too, when you call OP Customer Service or OP Deactivation Service.
  • Clean your device or have a professional do it and delete the applications you installed because of the scam.
  • Don’t start using new online bank user identifiers before the device has been cleaned.