DNSSEC

security

Domain Name System Security Extensions — a suite of specifications that add cryptographic authentication to DNS responses.

Pronunciation

Correct

D-N-S-sec

/diːɛnɛsˈsɛk/

The DNS portion is spelled out (D-N-S), and 'SEC' is pronounced as a word ('sek'). So the full pronunciation is D-N-S-sek.

Source: www.rfc-editor.org(official spec)