I'm trying to use a security key for my Vanguard site. I've tried with Firefox, Microsoft Edge, and Chrome. I can get to almost the end but get stopped-- I can't get no father to "connect and activate." I get a message saying--"Vanguard is requesting extended information about your security key which may affect your privacy. Firefox can anonymize this for you but the website might decline this key. If declined try again." I talked to Vanguard for help but they didn't know how to help. The key is uTrust FIDO2 NFC. USB-A NFC Certified Security Key. I believe the problem may be that this key will link all my accounts in Firefox ( and will also link if I use any other browser.) I got the following from the internet: When it says authenticators it means Security Key. Using an authenticator for one account is safe, but allowing a website to ask for extended information for multiple accounts using the same authenticator can permit that website to identify a link between those accounts. If you are concerned about having accounts linked together in this way, you should either deny extended information when prompted, or use different authenticators for the different accounts. This linkability is based on the authenticators, and not on your browser. If you use the same authenticator with different browsers, websites can still identify a link between multiple accounts. Can this be solved? Thanks joek90ros@aol.com