Some of you may have received this letter. Along with the poor grammar, the random use of font sizes and colors, and so very, very many clip art "certifications" - this letter is informing you lucky "stake winners" that you are a winner of the Mega Lottery Picker 2018 Draw! To collect your prize, they're going to ask you to send a money order to cover the 5% of your prize amount, as well as your bank account information, social security number (for tax purposes), and other personal information.
Needless to say, this is a scam. If you've received this letter, please throw it away. Variations of this scam have been around for years, and people who fall for it are hit two ways - first the money order they send and then their bank account is compromised.
As always, please be careful about giving out any personal information. Remember that if it's too good to be true, then it probably is.
If you have any questions, please contact your local law enforcement agency.