Microsoft Official Response to Custom Visual Security

I want to use custom visuals, however seeing the error "Caution: A custom visual could contain code with security or privacy risks" makes this an absolute no-go. I can't afford the potential risk that data could be leaked and I don't have an IT department to scan these visuals for security concerns.

Has Microsoft every posted an official response acknowledging that custom visuals on app.powerbi.com/visuals are certified as secure? I dont plan to download any custom visuals from any alternate sources, just that portal.

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(I posted this note in response to an older ticket in the forums from back in 2015. I found that as the closest ticket in the forums resembling my request. Given that ticket is marked as "solved" it looks like that post isn't getting circulation, so I thought I'd try reposting the question here.)

Old forum post link: http://community.powerbi.com/t5/Desktop/Security-Risks-involving-Visuals-from-app-powerbi-com-visuals/m-p/115705#M48772