Many corps still use Oracle Java 8 which is an expensive license. In some cases they think that Oracle Java is somehow better than OpenJDK. In other cases they still use old technologies like Applets or Java Webstart.
All in all, it’s in most cases technical debt.
When you program embedded you’ll also dereference NULL pointers at some point.
Some platforms can have something interesting at memory address 0x0 (it’s often NULL in C).
It may be open as concerns specs, but in most countries you’ll pay much for using provider services instead of internet.
On the other hand it’s closed, because no one except big mobile comms can offer this service. It’s better to avoid it. The only way to have free communication standards is to use the good old internet instead of the infrastructure of the provider.
They can have access to everything, if you use GBoard (default Android keyboard app).
Of course the headline is misleading. AI has always read your messages, if you allowed it. It depends how the AI is used and if it respects your privacy. It is possible and you can enjoy having your messages classified (or tagged) properly, so you know what are ads, which one belong banking, news or things you’re interested in.
As long as it assists you to do some boring complex tasks, it can be a great help.
Maybe finding the (n!)²th prime?