Are you contesting the fact that Microsoft downplayed some of its major remote code execution vulnerabilities or that Microsoft has been sharing zero-days with

Are you contesting the fact that Microsoft downplayed some of its major remote code execution vulnerabilities or that Microsoft has been sharing zero-days with the NSA for years (and now Apple is doing the exact same thing - voluntarily)? I can come back with sources, but I think you know exactly what I'm referring to. Maybe I painted with a too wide brush the "proprietary software teams pretending the vulnerabilities don't exist", but the "security through obscurity" expression didn't just come out of nowhere. Many proprietary software companies do try to hide or downplay their security holes when they happen - you can't seriously tell me you you're contesting that?