[Re-Titled by Moderator]
It tells you what to do. Your router is set to use WPA and WPA2. WEP (the oldest Wi-Fi security) was broken long ago. WPA replaced it and that too is no longer secure. iOS is letting you know your router is broadcasting an easily hacked wireless security protocol, and you should turn WPA (not WPA2) off.
From your Mac or Windows computer, go into your router's web setting pages. You should be able to do this from your iPhone, too, as long as you're within Wi-Fi range of your router. Typically, you put 192.168.0.1 into the URL search field. The router should prompt you for an admin name and password. If you don't know what those are, almost all newer routers have that info on a sticker, which is on the router itself.
Once in the settings pages, go to the wireless settings. You should be able to find a drop down menu for the security options. Change it to use WPA2 only, or WPA2/WPA3 if you have that option. Save the settings (the router may tell you it has to be restarted).
One possible downside. If you have much older devices that connect to the router that don't understand any security protocol newer than WPA, they'll no longer be able to talk to the router.
Laurence: Yes, I did that several times and various other things suggested. If a weak security message is never false, how is it that the message appeared on my new iPhone and disappeared after I updated the router; but it remains on my new Mac with Big Sur whatever I do?
I have already updated my router and today I checked that my wifi extender has up-to-date security WPA2-PSK as recommended by Virgin Mediahttps://community.virginmedia.com/t5/Networking-and-WiFi/iOS-14-Weak-Security/td-p/4410050.
So, I have a new iPhone which shows no weak security message when it sits beside my new iMac which does show a weak security message. Both are using 5G wifi. These are conflicting messages.
If I switch my iPhone to 2G but leave it beside the iMac, the iPhone shows no weak security message. If I take the iPhone upstairs, it switches to 2G wifi and it shows a weak security message. In isolation, this might suggest the extender is using weak security but I have checked the settings and it is not.
This mystery is now beyond me and having invested a lot of hours trying to solve the problem, I am inclined to leave it and accept whatever risk there is. Virgin Media (in the link) says there is nothing to worry about.
Yes, forgetting the network was done when I updated the router settings some time ago under the guidance of Virgin Media. It worked for the iPhone but not the iMac.
I checked the wifi extender to see if the security was up-to-date and it was. I rebooted the extender after checking and the outcome is still as it was.
There is a clash of views between Virgin Media [my wifi provider] and Apple where 2 of its products give conflicting results. If both Apple products concurred, I would suspect the network but they do not; and the iPhone gives an all-clear inline with Virgin Media.
I'm not seeing it nor anyone I know who has upgraded, but none of us are using a Virgin Media Hub.
Thank you so much !!!! I was able to fix it with your help.
Still says "Weak Security" after forgetting and re-adding on iPhone and iPad.
Network Preferences on our iMac lists the security as "WPA2 Personal". Wireless Diagnostics lists the security as "WPA/WPA2 Personal".
I've contacted Apple Support and passed on this information. They do not have an answer but are reporting the issue.
Good thing there is only one model iPhone and one model router in the world. Should make it much simpler to diagnose and fix.
Great, useful information!
HOW?
They are wrong
Moiaussinapa wrote:
Internet provider suggested I change the modems password. Assured me that it was properly secure on their end.
Oh, lighten up. It was a J-O-K-E.
And how was anyone supposed to know that just by reading it?
THANK YOU SO MUCH.... I HAVE BEEN ON THE PHONE AND ONLINE FOREVER LOOKING FOR AN ANSWER AND THIS DID THE TRICK!!
Weak Security WiFi on iPhone
