D3-DNL — Directional Network Link
D3-DNL: Directional Network Link
MITRE D3FEND countermeasure
What it does
Enforce one-way network communication by preventing two-way communication.
Attacks this counters
No ATT&CK technique in this corpus maps to this countermeasure. D3FEND may map it to techniques outside the Enterprise matrix, or to ones MITRE has since revoked — absence here is about this corpus, not about the countermeasure.