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Browser showing a certificate warning when you visit a website

A certificate warning means the website's security certificate is missing, expired, or doesn't match the web address. If this is a website you trust and use all the time, it's a temporary issue on their server — wait a few minutes and try again. If the warning keeps happening, don't give the site your password or financial information.

Websites use security certificates to prove they are who they say they are — like an ID card for a website. Your browser checks that the certificate is real and hasn't expired. If something is wrong with the certificate, your browser shows a red warning. This protects you from fake websites trying to steal your information.

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