Most common way to protect yourself from an unfortunate event is to have a separate phone for 2-factor where even if your number has been compromised the loss is minimal. It’s true but it only mitigates it to a level. Regardless of whatever you do, your personal number is exposed to multiple risks such as social media, personal email or messaging apps. Many messaging apps will let the hacker give access to personal messages & groups he’s part of. There has been instances where the hackers were able to intimate the voice and pretend to be with you to extract money from their loved ones or instruct colleagues to perform an action which they shouldn’t have.