In the last few days many have received a scam email in which the sender claims to have broken into your computer. In these blackmail attempts, the sender claims to have filmed you with malicious software installed on your computer and is trying to make you pay them money. These emails are scams - so do not believe the fraudsters' claims. You should never pay a ransom and do not have to do anything other than delete the email. (Here you can read Traficom's warning about the email in Finnish and here a short version in Swedish)
Always remember not to click on links in emails from unknown senders or give out your bank details, passwords or personal information.