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How-To & Hardening

Articles in How-To & Hardening.

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Microsoft 365How-To & Hardening

How to Retire On-Premises Exchange or Harden the Hybrid Server You Must Keep

On-premises Exchange servers were exploited repeatedly from 2021 to 2022. If you've moved mailboxes to Exchange Online, you may be able to retire your last...

Multi-CloudHow-To & Hardening

How to Find and Vault Hardcoded Credentials Across Cloud Services

Hardcoded credentials in scripts, configuration files and repositories are one of the easiest ways for attackers to escalate. Here is how to find them...

Microsoft 365How-To & Hardening

How to Review Third-Party Apps With Access to Exchange Online

Third-party applications connected to Exchange Online can read, send or manage mail across your organization. Here is how to review them.

Entra ID & IdentityHow-To & Hardening

How to Move From AD FS to Cloud Authentication and Retire Token-Signing Risk

The SolarWinds attackers used stolen AD FS token-signing certificates to forge SAML tokens (Golden SAML) and access Microsoft 365. Moving authentication...

Entra ID & IdentityHow-To & Hardening

How to Audit Service Principal and App Registration Credentials in Entra ID

Service principals and app registrations can hold powerful permissions with little oversight. Here is how to audit them in Entra ID.

AWSHow-To & Hardening

How to Deploy AWS Network Firewall in a Centralized Inspection VPC

A centralized inspection VPC lets one AWS Network Firewall deployment filter traffic for many VPCs. Here is the common architecture and setup sequence.

AWSHow-To & Hardening

VPC Egress Filtering Checklist

Egress filtering is one of the most effective controls against data exfiltration and malware. Use this checklist to put it in place across AWS VPCs.

AzureHow-To & Hardening

How to Patch and Monitor Domain Controllers in Hybrid Azure Environments

Domain controllers hold the keys to your on-premises identity — and, in hybrid environments, a path to the cloud. Here is how to patch and monitor them...

Microsoft 365How-To & Hardening

How to Map the Microsoft Defender Product Family to Your Environment

Microsoft's security product names have changed many times. Here is a practical map of the Microsoft Defender family — what each product does and how to...

Microsoft 365How-To & Hardening

Microsoft Defender XDR Onboarding Checklist

Owning Microsoft Defender licenses isn't the same as being protected. Use this checklist to onboard the Defender XDR products properly.

Entra ID & IdentityHow-To & Hardening

How to Protect Internal Admin Tools With Privileged Identity Management

Microsoft Entra Privileged Identity Management (PIM) makes administrative access temporary, approved and audited. Here is how to use it to protect admin...

Microsoft 365How-To & Hardening

How to Detect and Remove Malicious OAuth Apps in Microsoft 365

Malicious OAuth apps can read mail and files without a password. Here is how to find and remove them in Microsoft 365.

Multi-CloudHow-To & Hardening

How to Assess SaaS Vendors' Security Before You Sign

SaaS vendors hold your data, and their security directly affects yours. Here is a practical approach to assessing SaaS vendors before you sign —...

Microsoft 365How-To & Hardening

How to Lock Down Microsoft Teams Meeting Policies and Lobby Settings

Microsoft Teams meeting policies decide who can join, present and record. Here is how to tighten them without making meetings painful.

Microsoft 365How-To & Hardening

How to Govern Teams Creation, Guest Access and Expiration Policies

Teams sprawl and forgotten guest access create real security risk. Here is how to put lightweight governance in place without slowing collaboration.

AWSHow-To & Hardening

How to Investigate a GuardDuty Finding With Amazon Detective

Amazon Detective helps you answer the key questions after a GuardDuty finding: is it real, what did the identity do, and how far did it go? Here is a...

AWSHow-To & Hardening

Cloud Incident Investigation Runbook for AWS

A short, consistent runbook helps small teams respond to AWS incidents calmly. Use this as a starting template.

Multi-CloudHow-To & Hardening

How to Classify and Monitor Customer Data Stores Across Clouds

You can't protect customer data you can't find. Here is a practical approach to classifying and monitoring customer data stores across Azure, AWS and...

AzureHow-To & Hardening

How to Prevent Public Database Exposure With Azure Policy and Private Endpoints

A single network rule change exposed a Microsoft database to the internet in 2019. Azure Policy and private endpoints let you prevent that class of mistake...

AWSHow-To & Hardening

How to Use IAM Access Analyzer to Find Unused and External Access

IAM Access Analyzer finds two kinds of risky access: resources shared outside your organization, and permissions nobody uses. Here is how to use both to...

AWSHow-To & Hardening

Quarterly External Access Review Checklist for AWS

External access to your AWS resources should be known and approved. This quarterly review checklist keeps it that way.

Multi-CloudHow-To & Hardening

How to Retire Legacy VPNs in Favor of Zero Trust Access

Traditional VPNs give users broad network access once connected and present a constantly targeted appliance on the internet. Zero trust access replaces that...

Microsoft 365How-To & Hardening

How to Pilot Microsoft Purview Insider Risk Management

Microsoft Purview Insider Risk Management can detect data theft and leaks by insiders, but it needs careful setup and governance. Here is how to run a pilot.

Microsoft 365How-To & Hardening

Insider Risk Policy Checklist: Privacy, HR and Legal Sign-Off

Insider risk monitoring touches employee privacy. This checklist helps make sure policies have the right sign-off before you enable them.

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