2026
10
Phishing-Resistant by Default: Microsoft’s Passkey Shift
Phishing-Resistant by Default: Microsoft’s Passkey Shift
I joined Eric Woodruff and Sean Deuby on the HIP Podcast to discuss Microsoft’s Passkey Shift
07
From Initial Access to Persistence: Abusing Synced Passkeys in Azure
From Initial Access to Persistence: Abusing Synced Passkeys in Azure
I joined Altered Security to discuss synced passkey persistence in Azure, registration flows, detection, and remediation.
06
Audit device code flow before blocking it
Find device code sign-ins and test a Conditional Access block before enforcing it.
Defender Firewall FQDN filtering - prefer NRPT for broad blocks
Prefer NRPT for DNS namespace blocks to avoid shared-IP fallout from broad Firewall FQDN rules.
05
Use an allowlist for VS Code extensions
Control VS Code extensions with an enforced allowlist and keep reviewing approved extensions.
04
Scope application access to mailboxes
Limit Exchange application permissions to the mailboxes an app actually needs.
Entra.Chat: Backup, Governance, Conditional Access, and Risk
Entra.Chat: Backup, Governance, Conditional Access, and Risk
I joined Merill Fernando, Ru Campbell, and Thomas Naunheim on Entra.Chat to discuss Entra Backup, Tenant Governance, Conditional Access, and risk.
03
Entra.Chat: Passkeys, Conditional Access, and GSA BYOD
Entra.Chat: Passkeys, Conditional Access, and GSA BYOD
I joined Merill Fernando and Daniel Bradley on Entra.Chat to discuss passkeys, Conditional Access, and Global Secure Access BYOD.
Entra.Chat: Microsoft Ignite Identity Recap
Entra.Chat: Microsoft Ignite Identity Recap
I joined Merill Fernando and the Entra.Chat crew to recap Microsoft’s identity announcements at Ignite.
Sign-in Frequency - How It Works and When to Use It
Sign-in Frequency (SIF) is a commonly misunderstood control, one many orgs use to inflict unnecessary suffering on their employees 😩 It probably doesn’t work the way you think it does and is often used in less than ideal ways… So let’s look at how it works and when to use it. Original documentation excerpt introducing sign-in frequency and the risks of repeatedly asking users for credentials. Historical November 2025 documentation screenshot. Its broad session-revocation wording must not be treated as a guarantee for every application; use current, qualified guidance.
Foundations: Getting Microsoft Entra Suite Set Up Right
Foundations: Getting Microsoft Entra Suite Set Up Right
I joined Merill Fernando and the Microsoft Entra team to discuss getting Entra Suite set up right.
Use a browser profile for cloud admin accounts
Keep admin sessions separate while allowing device-based Conditional Access checks.
Check lookalike domains with dnstwist
Find and triage domain variants that could be used to impersonate your organization.
Improving passkey registration experiences
Improving passkey registration experiences
Lets see what we can do about minimizing passkey deployment issues with Compliance and App Protection Policy requirements :)
Finding Seamless SSO usage
Finding Seamless SSO usage
Disabling Seamless SSO is a simple checkbox, but figuring out what might break is a different story...
PIM Alerts is a hidden gem
Review PIM security alerts for useful identity recommendations and in-portal fixes.
Restart Windows directly into firmware settings
Skip the race to press a startup key with Windows' firmware restart switch.
Comprehensive Guide to Configuring Advanced Auditing
Comprehensive Guide to Configuring Advanced Auditing
This post provides everything you need to ensure Advanced Auditing is fully configured and auditing everything we possibly can for both existing and new users. I recently shared guidance for this via social media (see below), and it felt like a perfect time to revisit my previous posts and combine everything into one comprehensive guide :) You likely aren't collecting all available events to the Unified Audit Log First, not all events are enabled or retained optimally. Consider creating this policy in the Purview portal (leave users and record types blank to collect everything). Retention is based on license... pic.twitter.com/IEKKfrkpI8 — Nathan McNulty (@NathanMcNulty) January 20, 2025
Managing Restricted Groups with Access Packages
Managing Restricted Groups with Access Packages
👮 Restricted Management Admin Units (RMAU) in #EntraID Hackers HATE This Hidden Entra ID Feature Most Admins Never Use@NathanMcNulty breaks it down for us 👇 🎧 Get the full podcast episode at https://t.co/gnvH23WorW pic.twitter.com/nxBwCQ6BwS — Merill Fernando (@merill) March 29, 2025 I recently had a chance to discuss Restricted Management Administrative Units (RMAUs) with Merill, and one of my favorite uses for these is to protect groups that are used in Conditional Access policies so they aren’t accidentally modified or deleted. I’m also a big fan of using Access Packages to control membership of these groups for things like exclusions from geofencing policies, user action policies, blocking policies, etc.
Entra Chat with Merill Fernando
Entra Chat with Merill Fernando
I joined Merill Fernando on Entra.Chat to discuss operational groups and practical ways to manage Microsoft Entra.
Keep Defender AV notifications visible
Keep useful Defender Antivirus notifications without all the noncritical noise.
Limit Azure Arc management capabilities
Use monitor mode and local extension controls to limit what Azure Arc can do on your servers.
Improving Microsoft's authentication rollout templates
Save time on Entra rollout communications with Microsoft's customizable end-user materials.
Operational Collections 2.0
Automate security group membership based on device hardware, software, vulnerabilities, and other inventory data
Getting more data from the CA Insights and Reporting Workbook
Quick tip on using workbooks to create KQL queries and get more data than provided by the workbook
Defender for Identity Labs
Practice Defender for Identity alert investigation in an isolated, planned lab.
Super Advanced Auditing
Ensure all available audit records are collected to Unified Audit Log
Defender AutoConfig
A tool to assess and automate configuration in the Defender portal
One Full Scan
Improve Defender performance by performing one full scan
Hello for Business Guidance
Check cloud Kerberos trust prerequisites before using Hello for on-premises SSO.