It is currently circulating fake emails that are sent to the students' Google mail and appear to come from the student itself. The sender blackmails the recipient to send Bitcoin. This is fraud mail.
What you can do yourself is to change your password if you suspect it has been released and to report the email as spam (by clicking the "Report spam" button) in Gmail
As a student you can change your password here: https://konto.lnu.se/losenord/byta?l=en