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Security

ASCII Smuggling: Invisible Unicode Is Slipping Past Your Phishing Filters

ASCII smuggling phishing hides invisible Unicode inside lure words to dodge keyword filters — how it works, and how to normalize before you match.

Thorsteinn Halldorsson · September 30, 2026 · 13 min read Intermediate
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Security

Secure Boot Certificates and Memory Integrity by Default in Windows

Windows secure boot certificate update 2026 lands the same month Memory Integrity turns on by default — how to inventory, stage, and control both.

Thorsteinn Halldorsson · September 22, 2026 · 14 min read Intermediate
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Security

AI Agent Cyber Attacks: What the Unit 42 Case Changes

AI agent cyber attacks compressed an enterprise intrusion into under 10 hours. Rebuild Entra, GitHub and Key Vault containment so every step fires at once.

Thorsteinn Halldorsson · September 21, 2026 · 14 min read Intermediate
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AI

LiteLLM, RAGFlow, Kestra: Your AI Gateway Is a Control-Plane Target

AI gateway security after Microsoft's August findings: find exposed LiteLLM, RAGFlow and Kestra hosts in Azure, isolate them, rotate keys, detect abuse.

Thorsteinn Halldorsson · September 15, 2026 · 17 min read Intermediate
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Security

Emergency Patches Outside Microsoft: Adobe Commerce StyleSmuggler, N-able N-central, and PEEP

Vendor patches your Microsoft cycle won't show you: N-able N-central CVE-2026-86218, Adobe Commerce StyleSmuggler and the PEEP Chromium backdoor.

Thorsteinn Halldorsson · September 15, 2026 · 11 min read Intermediate
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Security

Teams Helpdesk Impersonation: When the Attack Rides a Trusted Workflow

Teams helpdesk impersonation detection: the kill chain, KQL hunting queries and the settings that stop one approved remote session becoming domain access.

Thorsteinn Halldorsson · September 11, 2026 · 18 min read Intermediate
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Security

September 2026 Patch Tuesday: 966 Fixes, Two Zero-Days to Triage First

September 2026 patch tuesday shipped 966 fixes and two exploited zero-days — the triage order, expedite paths, and KQL to run while you deploy.

Thorsteinn Halldorsson · September 11, 2026 · 12 min read Intermediate
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Security

gMSA, dMSA and the Service Account Problem Nobody Solved

Group managed service accounts security rests on two things almost nobody audits: the password retrieval ACL and the forest KDS root key. Fix both.

Thorsteinn Halldorsson · September 10, 2026 · 35 min read Intermediate
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Security

Entra ID Passkeys: Profiles, Synced Keys and a Rollout Plan

Plan your Entra ID passkey rollout: synced passkeys are supported, profiles control attestation and AAGUIDs, and passkeys are now the default sign-in.

Thorsteinn Halldorsson · August 26, 2026 · 16 min read Intermediate
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Security

Microsoft Is Retiring SMS and Voice MFA: Your Entra ID Migration Plan

Microsoft-provided SMS and voice MFA retires 1 February 2027. Here is the Entra ID timeline, the September 1 passkey opt-out, and a safe migration plan.

Thorsteinn Halldorsson · August 26, 2026 · 15 min read Intermediate
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