[hnbad]

Find a new job ASAP. The company will fail eventually. If the investors aren't doing their due diligence, that's on them. Investors expect companies to fail more than succeed and they budget accordingly.

If the company has indeed defrauded its investors, that's between the company leadership and the investors. Unless you're involved directly enough to be potentially liable, this is above your pay grade.

If you think you may have been involved in defrauding the investors, talk to a lawyer. Otherwise, shut your mouth until you've found a new place and then carefully evaluate what you say to whom to minimize the risk of being thrown under the bus.

You'd be horrified if you knew how many companies sell products that don't exist beyond organically evolving powerpoint presentations. It only becomes fraud when the companies fail to deliver and can't meet their obligations and the customers aren't willing to agree to alternative resolutions.

It sounds like your employer is currently not very good at generating sales at all so the only defrauded party would be the investors and that would require knowing what your employer actually contractually agreed to deliver in return for the investment. Unless you're privvy to what's in those contracts, my advice would be to zip it and GTFO.