The dramatic turnabout occurred after the woman complained to the police that she had been cheated on the internet.
When no action was taken she sensed that crime could perhaps pay and began placing ads on the internet for goods that did not exist, Borlänge Tidning reports.
She eventually tricked 27 people into making payments worth 100,000 kronor ($15,000) for concert tickets, puppies, mobile phones, travellers cheques, gift vouchers, hair extensions and clothes.
The 25-year-old, who has no previous convictions, was sentenced by Falu District Court to one year in prison. She was also ordered to pay back the money she had earned from her criminal enterprise.