Some background: I worked at a small startup in Utah for the last year and half. We were recently acquired, and we were told that we'd have our offer letters sent to us and that we could negotiate when we received our letters.
However, the company that acquired us (our new employer) said that I can't talk about my offer with anyone else, and that if I do they can revoke my job offer. The offer they sent me was far below median salary for that position here in Utah, and with their acquisition, it would literally be overseeing about 10x the amount of work that I was before (addition of new platforms and customers, etc...).
Is this legal? Some Google searching has inclined me to think 'no', but it's the part about them not yet being my employer that I'm not sure about.