Best Practice for Try Catch Error Handling

I'm trying to avoid returning an incorrect value when in the catch but I'm having trouble finding a better solution than this:

    private SecurityLevel ApiGetSecurityLevel()
    {
        try
        {
            return _BioidInstance.GetSecurityLevel();
        }
        catch
        { 
            return SecurityLevel.High;
        }
    }

Is there a better way of doing this so I don't return incorrect values? I can't change the SecurityLevel enum.

Do not catch the exception. Allow the exception to "bubble-up" to force the caller/callers to handle setting the default security value.

If you really want to return a value then use Nullable<SecurityLevel> or SecurityLevel?.

private SecurityLevel? ApiGetSecurityLevel() { 
    try { 
        return _BioidInstance.GetSecurityLevel(); 
    } 
    catch {  
        return null; 
    } 
} 

Then use as:

if (ApiGetSecurityLevel().HasValue == false) {
    // use default security level
}