There’s a particular bad security vulnerability for android, that affects Samsungs, Pixels and some other lesser know brands and models. All they need is your phone number and they have you.
Moral of the story: your phone is probably where your online life is, keep it up to date.
Some of the affected models: * Mobile devices from Samsung, including those in the S22, M33, M13, M12, A71, A53, A33, A21, A13, A12 and A04 series;
Details if you want here