|
I don't think it's common at all. A few shady companies have been outed doing it, but it's 100% unethical and stupid to even try - since you WILL be found out.
Even if it's "1 VM - 1 Physical machine" setup, anyone doing this will be up-front and tell the customer why it's being done, and the benefits/drawbacks of doing so. If not, then chances are something even more shady is going on.
|