From what I gather that doesn’t seem to be true. I might be naive here, but my ORSO is in my name with the employers contribution and my contribution clearly defined, managed by a third party (HSBC).
I can’t see how anyone could appropriate my ORSO account? It’s not the same system as a pension system where the entire groups money is all lumped together and you have the rights to a certain part of the pie when it’s your time. This is simply an individual savings/investment portfolio.
Not the most ideal one (have a look at the charges), but it seems to be mine providing I comply with the rules set out in the scheme.