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Other certs validate, it might be site-specific from my employer (I'm on my employer's network)?
by dimino 10y ago
Other certs validate, it might be site-specific from my employer (I'm on my employer's network)?
- pfg 10y agoOpenDNS/Cisco Umbrella is basically a DNS-level security service that analyzes your DNS queries, blocks known malware domains, etc. For some high-risk domains - depending on some settings - it will also switch to MitM'ing the connection to take a closer look at the traffic and block it on that level if necessary. It might also just be necessary to show the "This domain is blocked" page when you're requesting a site via https. Usually, your employer would pre-install their CA certificate, which would bypass the HSTS warning, but I suppose this might be a BYOD setting (or they just forgot/didn't like the idea of Cisco being able to MitM all the things).