NIGERIAN SCAMMERS
Michael Oluwasegun Kazeem came to America on a student visa, but he would ultimately be a key figure in a criminal conspiracy that used personal information on over 250,000 people to obtain the electronic-filing personal identification numbers for almost 20,000 American taxpayers. The scammers used those PINs to file over 10,000 tax returns and claim over $90 million in stolen tax refunds.
The actual losses for the IRS totaled $11 million, but Kazeem was caught, and in November 2017 he was sentenced on conspiracy to commit mail fraud, aggravated identity theft and mail fraud charges.