Therefore, you need an Azure subscription to use Sentinel, or Microsoft will bill you for every gigabyte of data you ingest into Sentinel. It’s important to note that Microsoft Sentinel is built on top of Azure ARM and is billed per use. This makes Microsoft Sentinel the perfect tool to get a bird’s eye view across your entire infrastructure and respond to incidents. From there you can query the data, set up rules to generate incidents, and automate responses to these incidents. Within Microsoft Sentinel, this happens through Azure Logic Apps.īy using Microsoft Sentinel, you can easily connect all your security tools and retain your logs in a central repository. SOAR stands for Security Orchestration, Automation, and Response, which means Microsoft Sentinel can integrate with other systems and provide automation capabilities for those systems. Using the same language, they can also create alerts and visualize data. By using a specific query language called KQL (Kusto Query Language), an IT analyst can write queries to retrieve data. Microsoft Sentinel can ingest a ton of logs and will parse and store the data. SIEM stands for Security Information and Event Management, but an easier term to understand Sentinel’s functionality is ‘Log Aggregator’. Microsoft Sentinel (renamed from Azure Sentinel during Ignite 2021) is Microsoft’s SIEM and SOAR product. ![]() Without doing that due diligence, an end-user might click on another suspicious email, or a code planted by the attacker laying dormant in your environment, avoiding detection and waiting to strike. You need to perform an in-depth investigation of an incident and verify how the threat entered your environment and if it was fully remediated. While tools like Microsoft Defender for Endpoint include automated remediation, it doesn’t cover everything. You need to tweak the security policies to make sure it’s configured correctly for your environment, and you need to feed it with data (detections and Indicators of compromise) specific to your organization.īesides tweaking how a security product works, you also need to investigate the alerts or incidents it generates. ![]() Every security product requires constant tweaking. It might classify active ransomware as a low severity threat or not detect it at all. No security product will detect 100% of the threats the detection mechanism of any security product will fail eventually. Unfortunately, I see many companies buying security products with the mindset that simply by purchasing these products, they are ‘unhackable.’ The real work starts when you implement your chosen product. Why should you care?īefore we jump into Microsoft Sentinel and compare it to Microsoft 365 Defender, we should first explain why you need to monitor your cloud infrastructure. In this article, I will describe the main capabilities of Microsoft Sentinel, how it differs from Microsoft 365 Defender, and why you would enable it. During these conversations, Microsoft 365 Defender often comes up as an alternative. I often hear confusion around what Microsoft Sentinel does, and why you would use it. You might even actively use it, are currently testing it, or looking into the benefits. The type of agent the event was collected by.If you are a Microsoft Cloud or security enthusiast, you’ve probably heard of Microsoft Sentinel. When _IsBillable is false ingestion isn't billed to your Azure accountĪ unique identifier for the resource that the record is associated with Specifies whether ingesting the data is billable. ![]() Security events collected from windows machines by Azure Security Center or Azure Sentinel.
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