@wackywek
The theft of your cryptocurrency is nothing at all like a Ponzi scheme. A Ponzi scheme is an investment fraud that pays existing investors with funds collected from new investors. Your theft loss was not due to a Ponzi scheme. There is nothing that you can deduct.
If you are concerned about security, don't post personal information like your real name, email address, case numbers, etc. in a public forum like this. Some of your personal information was removed by the forum software. You can remove other information by clicking the three dots in the top right corner, then selecting "Edit Reply."
