a simple explanation for nubes and basic general dumbed down public on the reason for a need of digital privacy please

Can someone please give me a simple explanation and information about digital privacy? This information is for myself and not to argue it, but to educate myself. Apparently everything about me has been found on the dark web and I'm trying to remedy. According to my banking app, it's everything about me and repeatedly exploited on the dark web.

I've just upgraded to a new phone and it's been 6 months and I STILL have to walk around with 2 …

basic digital digital privacy down general privacy privacy please public simple