Lots of good commentary here on the Google v. MS war.
The missing element is mention of our government. That's because for at least two decades it has been asleep at the wheel allowing exploits to go on and on and on un-repaired, allowing competitors to exploit the mere awareness of exploits and likely allowing itself the arrogant power to secretly inject exploits into major systems as part of the "security' apparatus.
If the wheels of a particular car brand fell off when certain odd circumstances were present, you can be rest assured a great uproar would ensue and the government would force the manufacturer to fix the problem ASAP or face vast penalties and fines. Not so with software used by most everyone, however.
Regardless, my main concern is these corporations are becoming the government by filling the power vacuum created by our incompetent elected leaders. Meanwhile officials practice malicious governance simply to keep themelves in power and the donation dollars flowing. Thus, amoral profiteer corporations become the government, by default.
Currently Google and FB are working on systems to fight "fake news", (based on their definition), Google is coming up with AI to locate and defeat "trolls", FB is simply sucking up personal data of every kind to market to for the highest price.
And yes, they aren't the only companies with their particular internet racket going ala' cosa nostra....
It's everywhere and getting worse.
Where's Eliot Ness when you need him?