Had the wrong Sander Bullock movie. “The Net” seems like the right one. What I recall is that a Gates look alike came up with the mostest, greatestest OS of all time that had the strongest encryption ever existed and everyone went “WOW” over it. Sandra Bullock’s character found that it had been codeveloped with the US government so that they had a key to a “back door” bypassing all the security features thus allowing them to see all one did online.