A user has contacted the IT helpdesk explaining that they receive certificate warnings every time they try to access multiple secure websites, including well-known banking and email services. What could be the MOST likely cause of these browser certificate warnings?
All the websites visited by the user have simultaneously expired security certificates.
The date and time settings on the user's computer are set incorrectly.
The user's browser does not support the types of certificates used by the secure websites.
The encryption cipher being used by the browser is not strong enough for the websites' security requirements.