Hi @JohnM I think this is you’re computer firewall / security software that’s flagging the message.
When your browser visits a website it reads the website address which is proceeded with the letters HTTP or HTTPS
The S on the address is the key factor here. It means the page is secure, if it contains a wallet - a means by which you can make an online purchase.
Until websites started selling stuff online all websites used the HTTP flag.
Security software is designed to LOOK for this and Flag a warning. Sometimes the software misreads the HTTPS and flags the alert.
When this happens just refresh your browser. As @BanJoe says you’ll see this happen on other sites.
Should it continue just check the address bar on your browser does it start HTTP or HTTPS
Just remain alert and be aware there are fake sites out their trying to steal your info. Make sure your Firewall & Security Software is always up to date.