The Domain Name System (DNS) is often referred to as the phone book of the internet. DNS translates web addresses, which people use, into IP addresses, which machines use. But DNS was not designed with security in mind. And even though companies have invested incredible amounts of money into their security stack (and even though they’ve had since the 1980s to figure this out), DNS traffic often goes unmonitored.
This has only worsened with the adoption of encrypted DNS, known as DNS-over-HTTPS (DoH). Since its introduction in late 2018, DoH has grown from a personal privacy feature that most IT teams blocked outright, to an encouraged enterprise privacy and security function. While DoH protects traffic in transit, it also leaves organizations with little to no visibility over what’s happening with their DNS queries.
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