Being open source does not make anything inherently more secure. It adds transparency and possibly confidence but for those without the resources to review the

Being open source does not make anything inherently more secure. It adds transparency and possibly confidence but for those without the resources to review the designs themselves it still boils down to a matter of trust in the competence of those maintaining the design. The potential trial for security does not equal security. Most arguments in favor of open source security boil down to speculating about what's behind the curtain of closed systems. That's not really the same thing as security. One thing that open source does do is lay bare any undiscovered flaws for future discovery, and exploitation.