If Instagram/Facebook/Whatsapp have ever had access to your contacts - even inadvertently - you essentially can't undo this.
If Instagram/Facebook/Whatsapp have ever had access to your contacts - even inadvertently - you essentially can't undo this.
Of course you could take a similar argument or stance when it comes to desktop, and indeed, just look at all those CPU vulnerabilities. I think technology is at a really sad state. Most things are closed source (what does your keyboard do?![1]), and we have no goddamn way of knowing what is happening behind our back unless someone reverse engineers it, but the fact that it has to be done is an issue to me.
[1] https://thehackernews.com/2017/11/mantistek-keyboard-keylogg... or https://security.stackexchange.com/questions/158805/how-to-d... but yeah you could just search for it. Regardless, besides the point. :)