Read as
Why this module exists. DNS is the most-exploited and most-overlooked protocol layer. DoH, DoT, DNSSEC, and DNS sinkholing each address specific threats. This module covers the modern DNS security stack and operational patterns.
The classic DNS problems
- Plaintext queries visible to network observers.
- Response forgery / cache poisoning.
- No cryptographic authenticity.
- DNS used for data exfiltration.
- DGA and fast-flux evading blocklists.
Want this for your team?
Custom team training + practitioner advisory
Beyond the free academy — we run private workshops, vCISO advisory, and red-team exercises tailored to your stack. For Indian SMBs scaling past their first hire.
Book team training call
Replies in 4 working hrs · India-only · Senior consultants