Kjong1 wrote:
yes, I own the wifi, but not sure if the wifi service providers can have access to my privacy because of the weak security ⚠️
Your internet provider has access to all sorts of information, regardless of your WiFi security. They know how long you're online, and probably what sites you visit. If they're also your email provider, well, you get the picture. So does your cellular phone company. They don't have access to what's on your hard drive.
The real concern is what other people might be able to access from your network traffic. And yes, this matters even if it's your own WiFi. If the network is yours, you have control over the security settings. Make your network more secure.
See here:
Recommended settings for Wi-Fi routers and access points - Apple Support