However, if that idea is worth selling, you will be ahead in the market. Microsoft will need to catch up. They may buy you out. Software typically goes obsolete

However, if that idea is worth selling, you will be ahead in the market. Microsoft will need to catch up. They may buy you out. Software typically goes obsolete for reasons other than the "need" for protection. Besides, by the time Microsoft does that, some other algorithm could quite possibly be created by somebody else.