MonitorSignInTool v.1

MonitorSignInTool is a lightweight, PowerShell-based monitoring solution for monitoring sign-ins to Microsoft tenants.

🚀 Features

• ✅ Monitors sign-ins and sign-in attempts and sign-ins for selected accounts via Microsoft Graph API
• 🔒 Uses certificate-based authentication for enhanced security
• 📧 Sends detailed email alerts to defined recipients when activity is detected
• 💻 Can run on any Windows machine using Task Scheduler
• 🆓 100% free and open-source – ideal for SMBs and low-budget environments

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📌 Use Cases

• Monitoring Break-Glass / Emergency Admin accounts
• Detecting unauthorized or unexpected sign-ins on high-privileged roles
• Enhancing visibility for SMBs without E5 licenses or Log Analytic Workspace

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⚙️ Prerequisites

• A Microsoft Entra ID tenant

• A registered application with: Certificate-based authentication

• PowerShell 7+

• Email account with at least Exchange Online P1 license

• Windows endpoint

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🔧 For Setup Instructions read .pdf file in main .zip folder