Perhaps the biggest risk a Bitcoin owner faces is having the private key stolen or losing the key altogether, without which there is no way to access the BTC. Many crypto investors also fear losing their currency via computer malfunction, hacking or physically losing the device. Due to this risk, some users opt for a cold wallet that is not as convenient, but, nevertheless, isn't connected to the internet so cannot be hacked online.
There are steps you can take to make your Bitcoin wallet more secure, including deploying  extra security measures depending on your device’s capabilities. You may be able to, for example, add an "App lock" pin code or a fingerprint ID. Do your own research to determine which extra protections work best for you.