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Cybersecurity Blog

Analyses, practical tips and assessments from the world of IT security.

204 articles total - Page 2 of 30

Network & Endpoint Security

DMARC Implementation: Step-by-Step from p=none to p=reject

DMARC (Domain-based Message Authentication, Reporting, and Conformance) protects your domain from email spoofing and phishing. This guide walks you through the entire DMARC rollout: SPF and DKIM as prerequisites, configuring the DMARC record, reporting analysis with forensic and aggregate reports, and step-by-step policy tightening from p=none to p=quarantine to p=reject. It also covers common pitfalls and DMARC monitoring tools.

Vincent Heinen
Vincent Heinen
10 min read
Network & Endpoint Security

Identity Threat Detection and Response (ITDR): Detecting and Defending Against Identity Attacks

Identity Threat Detection and Response (ITDR) is the new security discipline for attacks on identity systems: Active Directory, Azure AD/Entra ID, and IAM platforms. This guide explains why traditional SIEM rules often overlook identity attacks (Golden Ticket, DCSync, Pass-the-Hash, MFA bypass), how ITDR solutions (Microsoft Defender for Identity, Silverfort, Illusive) close the gap, and which detection use cases and countermeasures organizations should prioritize.

Jan Hörnemann
Jan Hörnemann
11 min read