Bomb threats have been sent to businesses around the nation as part of a ransom scheme.
The threats have been made by fax or email and asked for a $25,000 ransom to be paid by Western Union to a Brazilian national.
The sender threatens to blow up buildings if the money is not electronically sent, and the person also claims the victims' emails are being monitored.
Federal authorities are investigating the threats, but they don't believe they're credible.
Authorities have cautioned against sending funds in any amount to unknown persons.