Since August 2021, the FBI has received reports of several packages containing these USB devices, sent to US businesses in the transportation, insurance, and defense industries. The packages were sent using the United States Postal Service and United Parcel Service. There are two variations of packages—those imitating HHS are often accompanied by letters referencing COVID-19 guidelines enclosed with a USB; and those imitating Amazon arrived in a decorative gift box containing a fraudulent thank you letter, counterfeit gift card, and a USB.