How to protect data

Hello, I have recently registered on the forum. I hope someone can help me!
How do you protect information on your gadgets, what applications or features do you use? The fact is that I store a lot of data on my smartphone, and if I lose my phone, I would not want anyone to get access to it, including the ODK, which contains a lot of valuable information for me. That's why I'm wondering what protection options are available.
I would be grateful if you could share your experience.

Welcome to the ODK forum, @Gary! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!

There's a page in the documentation on Android security recommendations with 2 links to more information. But it would be interesting to hear people's personal experiences with this.