The IT Center cautioned users about phishing messages sent from University of Helsinki addresses in May: https://helpdesk.it.helsinki.fi/en/news/phishing-messages-using-university-helsinki-addresses-detected
Unfortunately Office 365 phishing campaigns have continued in Finland, and the Finnish Communications Regulatory Authority has today issued a warning concerning data breaches: https://www.viestintavirasto.fi/en/cybersecurity/alerts/2018/varoitus-2018-03.html
The IT Center recommends that users pay special attention to any phishing attempts. Please note that the IT Center never verifies Office 365 accounts or passwords via e-mail!
To verify your Office 365 account does not have any unsafe redirect rules, please read these instructions (In Finnish, translation pending).