USPS is the United States Postal Service.
A government agency in the USA, usually the postal service of the USA.
USPS - there you are used to the sorrowing because the mails of the postal authority in the USA can be forged excellently, here are for starting points for phishing and scamming. Now also for the transmission of Emotet, the modern digital plague. This time in the shape of USPS ticket #8552, which is supposedly created by the potential customers and is a fake. A complete fake.
Don't open it!!!
Move the mail into the digital trashcan. Delete it there.
Wide range of "possible uses"
If one had otherwise come across gambling via USPS link, it is now one of the most insidious software tricks of the digital world at the start. Sometimes even utterly insane compensation payments that encourage citizens to open the links. Or legacies in the millions, which are reported via USPS. Or groups of perpetrators try to redirect packages that exist to themselves or their accomplices. A mask, which as real in computer graphics, too confusingly similar. The credit card number is then "picked up" at the same time. The credit card is required incidentally in the process. The delivery costs the recipient will pay. The methods of the digital underground are sophisticated and hardly understandable to the layman.
Allegedly USPS would already be aware of the problems caused by their mails. But now the problem is more serious, with a rather skilful email, it is pretended that it is about a message. If you don't look closely, you'll fall for it. Thousands of these mails are currently in the circulation. Behind it is Emotet, the encryption virus. If you click, you may lose your data forever, unless you have backed it up externally. The sender is a condondufour of an Italian internet platform. There is probably a forwarding here. Nobody should believe that the senders or backers will release the account when payment is made.
Those who pay will later wait in vain for their data to be released. And on top of that, the is data off forever. One should only react to blackmail with a report to the police, but not to the perpetrators.