>>1030643
>This includes any potential attackers, who may not be willing to disclose any obscure yet powerful bug they come across.
>Implying proprietary software is more secure
The more people know about a bug, the better it is, because you can fix it quickly. Not knowing about an issue won't make a program more secure. Think about meltdown and spectre - all intel(and almost all amd) processors made after 1995 were affected. It took over 20 years to find. Just imagine a cracker, that knew about these vulnerabilities back then.
Not having your doors closed, won't make you more secure, when someone presses it.