Apple's near-adoption of NeuralHash.

For years I was comfortable with using big tech companies that had strong tech credentials and a level of trust in the community for implementing things well, securely, and in a way that preserves privacy and respect for the user. Closed systems provided by them were therefore trustworthy to me, having faith that the world-class security professionals and software developers and product owners were all implementing things well, even though I had only limited direct visibility of that. Apple in particular had a reputation for having the most respect for users and their privacy.

Then NeuralHash broke the spell for me. I had an epiphany, a sudden realisation that the untrustworthiness I knew existed in other companies existed in these ones too. I switched to a firm belief that if it's possible for a company to do something naughty with your data, then on a long enough timeline it's inevitable that they will.

I resolved then to avoid big tech wherever I can, and where I can't I try to implement things in a way such that it isn't ever possible for them to do nasty things with my stuff. I've de-Googled, de-Appled, and de-Amazoned, and returned to having a strong emphasis on managing my privacy and taking ownership of as much of what I use as I can.