What is weak security

sudesh99 wrote:

What does weak security mean in wi fi

It means a Wi-Fi network with no security, or with lower security.

Wi-Fi routers with configurations using WEP, WPA, and WPA2 TKIP security are considered less secure, and Wi-Fi with WPA2 AES, WPA2/WPA3 transitional, or WPA3 security, are considered more secure.

Weaker Wi-Fi security is fairly easy for a miscreant to crack open and fully access.

Some routers can be reconfigured to use WPA2 AES or newer security, while very old routers should likely be replaced with a newer (and preferably Wi-Fi 6 capable) Wi-Fi router.

How to reconfigure security depends on the Wi-Fi router vendor and model. Check the manual for the router. And check whether the router vendor has a firmware update available,too, while you’re accessing the router configuration and management interface.

Officially > Recommended settings for Wi-Fi routers and access points - Apple Support

Or you ignore it all and continue using the older and less-secure connections, of course. It’s your data.

a motel, municipal building, eatery, etc. might have free wi-fi but it's usually not encrypted and can be read if someone on the other end is looking at it. using a VPN can encrypt your data back and forth, anyone trying to look at it could see you are connected but not what you are doing.

Add-on VPN clients are a wonderful way to have all of your network traffic and data centralized for easy monitoring, collecting, logging, and with encrypted traffic quite possibly accessed with any VPN-added installed trusted certificates.

There have been indirect indications that some VPN services are accessing and decrypting SSL/TLS protected data, based on reports of certificates installed and connectivity issues potentially caused by SSL/TLS interception and decryption. And various of the no-logging VPN services were caught logging. And a major VPN service was breached. This before discussing thar the wide availability of the VPN credentials means that the VPN connections themselves can be accessed and decrypted.

Between a local coffee shop running a barely-upright Wi-Fi and an add-on VPN service dedicated to data collection, I’d bet on the coffee shop. I expect the VPN service will be doing whatever it can with my data. Whether the coffee shop does?

This all pending the VPN updates announced by Apple at WWDC, and this as differentiated from a VPN used to cinnect into the private network of an organization the user is affiliated with and connects into.