Probably their auditors? Lying about this would be tantamount to (very serious) securities fraud. Not sure what you're basing on your allegations on besides "trust me bro"
Why would lying about having E2EE be securities (as in stock market) fraud? Would that make any lie ever told by a corporation equate to stock market fraud?
Why would lying about having E2EE be securities (as in stock market) fraud? Would that make any lie ever told by a corporation equate to stock market fraud?