Scam! They claim they are from the federal government and want to give you grant money. When you call back the number is unavailable.

Just got a call from them, couldn't understand a damn word he was saying but claimed my computer was sending them signals to show someone was trying to hack into my computer.

Scam! They claim they are from the federal government and want to give you grant money. When you call back the number is unavailable.
The grant was for $9000 dollars all I had to do call another number 1-202-795-1894 and give them my reference number AK447. Verify some information and they would wire the money Walmart. Scam! Scam! It was funny AK447

Scam! Some other numbers to look out for.
1-636-512-0000, 1-635-515-0000, and 1-631-518-0000. Keep calling from different numbers, I guess they really wait me to have this $9000 dollars. Scam!

They reported to be from Dell Technical Support to tell me they were receiving alerts from my computer, when I asked them to give me more information like which computer they just said dell inspiron and couldn't give me any more information.  I have an apple so I am fairly certain this is a scam company and it looks like they may be cycling/reusing numbers.