Articles - Page 6

October 2025

What Is ARC (Authenticated Received Chain)?

CaptainDNS · October 23, 2025

ARC: keeping trust in an email as it crosses intermediaries

ARC (Authenticated Received Chain) lets every relay forward, sign, and seal the authentication results it observed so the final server can decide whether to trust the message.

AI-Powered Phishing: More Effectiveness and Profitability

CaptainDNS · October 22, 2025

AI-Powered Phishing: What the MDDR 2025 Reveals

AI-automated phishing emails average a click-through rate of roughly 54%. At scale, automation can make these campaigns up to ×50 more profitable. Both figures come from the Microsoft Digital Defense Report 2025 (MDDR 2025).

CaptainDNS · October 20, 2025

EDNS Client Subnet (ECS): understanding how DNS adapts responses to your location

EDNS Client Subnet (ECS) lets a DNS resolver pass a client address prefix to improve geolocation of the answers.

CaptainDNS · October 17, 2025

Building Resilient DNS Monitoring

Ensure visibility of your domains by combining zone differences, active queries and propagation tests.