Microsoft Sentinel Reviews

We are using Microsoft Office 365 E5 license right now, which means we are using Windows Defender ATP because of its cloud application security platform. We also have Exchange Online Protection. The main thing is we are replacing all of our on-prem solutions with Microsoft Office 365 and Azure solutions.

Our use case is for Azure Active Directory, Advanced Threat Protection, Windows Defender ATP, Microsoft cloud applications, Security as a Platform, Azure Firewall, and Azure Front Door. All of the Azure Front Doors logs are coming to Azure Sentinel and correlating. However, for our correlation rules that exist on the QRadar, we are still implementing these rules in Azure Sentinel because we have more than 300 different correlation rules that exist from the QRadar.  

It is always correlating to IOCs for normal attacks, using Azure-related resources. For example, if any illegitimate IP starts unusual activity on our Azure firewall, then it automatically generates an alarm for us. 

We do not get so many attacks, but if any attacks occur on our Azure Firewall site, then we are able to understand where the attack came from. Sentinel lets us know who introduced it.

It is perfect for Azure-native solutions. With just one click, integrations are complete. It also works great with some software platforms, such as Cloudflare and vScaler. 

The rule sets of Azure Sentinel work perfectly with our cloud resources. They have 200 to 300 rule sets, which is perfect for cloud resources.

They need to work with other security vendors. For example, we replaced our email gateway with Symantec, but we couldn't collect these logs with Azure Sentinel. Instead of collecting these logs with Azure Sentinel, we are collecting them on Qradar. We couldn't do it with Sentinel, which is a problem for us.

It is difficult right now because there are not so many consultants who exist for Azure Sentinel, like there are for QRadar. We are not able to find a Sentinel consultant right now.

In Turkey, we are the biggest energy generation company for the public sector. We head more than 20 power plants right now and have more than 1,000 people working in the energy sector. Two years ago, we started to work with Microsoft to shift our infrastructure and workloads to the Azure and Office 365 platforms. So, our story starts two years ago.

It is stable. We have had one or two issues, but those are related to QRadar. We are creating and pushing logs all the time to QRadar, because the Microsoft security API does not send these logs to QRadar.

One resource is enough for day-to-day maintenance of our environment, which has 1,000 clients and 200 or 300 servers. However, our servers are not integrated with Azure Sentinel, because most of our servers are still on-prem.

For Azure- and Office 365-related products, it is perfectly fine. It is scalable. However, if you want to integrate your on-prem sources with Azure Sentinel, then Azure will need to improve the solution. 

We are using Microsoft support for other Microsoft-related issues. They have been okay. They always respond to our issues on time. They know what to do. They solve our issues quickly, finding solutions for our problems.

Right now, we are using QRadar for on-prem devices. On the other hand, we have Azure Sentinel for log collecting in the cloud products. All of the Microsoft components give logs to Azure Sentinel, but all of the on-premises resources are being collected on IBM QRadar. So, Sentinel has been helping us because this is causing complications for us. While it is possible to collect logs from QRadar to Sentinel to QRadar, it is difficult to do. So, we are collecting incidents from our QRadar, then our associates monitor Azure Sentinel-related incidents from QRadar.

We have been starting to use Azure Kubernetes Service. However, our developers are afraid of shifting our production environment to the Azure Kubernetes so this whole process can continue. At the end of the day, our main goal is still completely replacing our on-premises sources with serverless architecture. 

We also started to use Azure Firewall and Azure Front Door as our web application firewall solutions. So, we are still replacing our on-prem sources. Azure Sentinel works perfectly in this case because we are using Microsoft resources. We have replaced half of our on-premises with Azure Firewalls. The other half exists in our physical data centers in Istanbul.

The initial setup is getting more complex since we are using two different solutions: One is located on-prem and the other one is Azure Sentinel. This means Azure Sentinel needs to inspect both SIEMs and correlate them. This increased our environment's complexity. So, our end goal is to have one SIEM solution and eliminate QRadar.

The initial setup process takes only one or two weeks. For the Azure-related and Office 365-related log sources, they were enabled for Azure Sentinel using drag and drop, which was easy. However, if you need to get some logs from Azure Sentinel to your on-prem or integrate your on-prem resources with Azure Sentinel, then it gets messy. 

This is still an ongoing process. We are still trying to improve our Azure Sentinel environment right now, but the initial process was so easy.

We had two three guys on our security team do the initial setup, which took one or two weeks. 

We are not seeing cost savings right now, because using Azure Sentinel tools has increased our costs.

Pricing and licensing are okay. On the E5 license, many components exist for this license, e.g., Azure Sentinel and Azure AD.

I am just paying for the log space with Azure Sentinel. It costs us about $2,000 a month. Most of the logs are free. We are only paying money for Azure Firewall logs because email logs or Azure AD logs are free to use for us.

In Turkey, Microsoft is more powerful than other vendors. There are not so many partners who exist for AWS or G Cloud. This is the reason why we have been proceeding with Microsoft.

QRadar rules are easier to create than on the Azure Sentinel. It is possible to create rules with Sentinel, but it is very difficult.

There have been no negative effects on our end users.

I would rate Azure Sentinel as seven out of 10.

Our clients use it for just an overall health check and security check for their deployments, whether it's on-prem or in Azure. Azure Sentinel basically collects the data from any kind of endpoint or server that is enrolled in the service, irrespective of whether they are on-prem or in the cloud. It can be laptop servers, virtual machines. It is a cloud solution, but it does extend to on-prem deployment.

I have been using the most up-to-date version. 

One of the most valuable features is that it creates a kind of a single pane of glass for organizations that already use Microsoft software. So, when they have things like Microsoft 365, it is very easy for them to kind of plug in or enroll those endpoints into the Azure Sentinel service.

I can't think of anything other than just getting the name out there. I think a lot of customers don't fully understand the full capabilities of Azure Sentinel yet. It is kind of like when they're first starting to use Azure, it might not be something they first think about. So, they should just kind of get to the point where it is more widely used.

I have been using Azure Sentinel since it came out, so it has been at least a couple of years.

It is very stable. It has been around for a while, and it is a Microsoft product. So, it is pretty secure and pretty stable.

Like all Azure services, it is definitely very scalable. You can very easily and very quickly enroll devices and other data points into Azure. 

Microsoft tech support is pretty good when it comes to Azure. It is really easy to open a ticket because you can do that right through the Azure portal. In addition, my company and other companies that kind of resell Azure services, oftentimes have our own help desk included with the consumption of Azure services. So, we have a 24/7 help desk that works on top of that. There are many managed services partners, like my company, that provide additional services in tech support on top of what Microsoft already has.

It is very straightforward.

It is kind of like a sliding scale. There are different tiers of pricing that go from $100 per day up to $3,500 per day. So, it just kind of depends on how much data is being stored. There can be additional costs to the standard license other than the additional data. It just kind of depends on what other services you're spinning up in Azure, or if you're using something like Azure log analytics.

For any customers who are either looking at Azure or already have Azure or Microsoft 365, this is a great service to look at because it does provide an additional layer of protection and security for all of their data points, whether they are on-prem or in the cloud.

I would rate Azure Sentinel a nine out of 10.

Log management is the primary purpose of Microsoft Sentinel to help us monitor the environment and detect threats. That way we can stop them at the first opportunity so that they do not impact the environment.

We take data from the data connectors. Some of the devices are default devices in Microsoft Sentinel, but we can easily add others. For some, we need to use an API or we need some extra help to add them into our security solution. At times, we need an agent.

It is a great tool for log management. It uses KQL (Kusto Query Language) which makes it very easy to find out anything in the environment by writing code.

If we have found some threat intel apart from Microsoft, we can add that to the watchlist category. We have a MITRE ATT&CK framework category and we can map the new threat method methodology into our environment through Microsoft Sentinel. There are multiple features in Microsoft Sentinel that help us add threats into the environment and detect threats easily and quickly.

There are multiple things integrated with it, like CrowdStrike, Carbon Black, Windows and Linux devices, and Oracle. We can see threats from all the environments. If an attack happens on the AD side, we can see that things are signed off. All those sources are integrated and that's a good thing.

On a weekly basis, it is saving us 10 hours, because we get results from the solution very fast.

There are many features, including watchlists and analytics. We can also use it to find out multiple things related to log management and heartbeat. All the features have different importance in those processes. 

The analytics have a lot of advantages because there are 300 default use cases for rules and we can modify them per our environment. We can create other rules as well. Analytics is a useful feature.

Another good feature is the data connectors, where we are collecting the logs from external devices and mapping them into the security solution. That feature is helpful.

The information Sentinel provides is of great use. Microsoft has its own threat intelligence team and they are mapping the threats per the IoCs. It lets us see multiple things that are happening. These things are a starting point for any type of attack and they are already in the solution's threat intelligence. Once something has been mapped, meaning whenever we get an alert from a threat actor, based on IoCs, we can analyze things and block them. There are multiple use cases and we can modify them for our environment.

We need to map things through the MITRE ATT&CK framework. Sentinel is a detection tool. Once it detects things, that is where human intervention comes in and we do an analysis. It is giving us ideas because it is generating events. We can see what events are happening, such as what packets are being analyzed, and what processes are being created. We can analyze all these aspects, including EDR cloud, because they are integrated with Microsoft Sentinel. It lets us see third-party sources. It is a very nice security monitoring tool.

The comprehensiveness of Sentinel's security protection is really great. I don't think it has SOAR capabilities, but it has UEBA.

Sentinel still has some anomalies. For example, sometimes when we write a query for log analysis with KQL, it doesn't give us the data in a proper way. We are trying to improve it and write the query in a manner that will give the desired results. We're trying to put in the conditions based on the events we want to look at, and for the log sources from which we are getting them. For that, we are working on modifications of our KQL queries. Sentinel could be improved by Microsoft because sometimes queries are not giving the desired results. This is something they should look into.

Also, the fields or columns could be improved. Sometimes, it is not giving the desired results and there is a blank field. 

In addition, while the graphical user interface of Microsoft Sentinel is good, there is some lag in the user interface.

I have been using Microsoft Sentinel for the last year. I have been more into the analysis part and the creation of use cases by using the analytics.

It's a stable solution.

The combination of the ease of accessibility and the free cost of the service is great. But we buy storage based on our events per second and on how many sources are integrated into the solution. We have to store the data in our environment to do analysis on past events or to check past threats.

We use Sentinel to monitor events and incidents that occur on our tenant. It covers all the servers and applications in the cloud, too. 

We can use Sentinel's playbook to block threats. It covers all of the environment, giving us great visibility.  

If Sentinel had a graphical user interface, it would be easier to use. I would also like it to be more customizable. 

We've been using Microsoft Sentinel for nearly 20 years. 

Sentinel isn't very easy to set up, especially when we're trying to connect to a server at the entry point. We run into some configuration issues when connecting. 

I rate Microsoft Sentinel eight out of 10. 

We are using mixed solutions. We are currently working with IBM solutions and Azure system services. We are using two SIEM solutions: Azure Sentinel and QRadar. Azure Sentinel is covering our cloud-based solutions, and QRadar is covering our on-premise solutions.

The best functionality that you can get from Azure Sentinel is the SOAR capability. So, you can estimate any type of activity, such as when an alert was triggered or an incident was found.

It integrates with Azure AD, Power BI, and other Microsoft solutions. It is very good in our view.

It would be good to have some connectors for third-party SIEM solutions. Many customers are struggling with the integration of Azure Sentinel with their on-premise SIEM. Microsoft is changing the log structure many times a year, which can corrupt a custom integration. It would be good to have some connectors developed by Microsoft or supply vendors, but they are not providing such functionality or tools.

It can be expensive for customers. Currently, we are not using Sentinel to collect logs from on-premise devices. The main reason for that is the budget because you need to pay for the internet traffic. You also need to calculate how much you can upload to the Azure site. 

I have been using this solution for one year.

It is stable, but it is also related to your country. I'm working in Kazakhstan, and sometimes, we have some problems with the internet connection at the government level. Sometimes, for some reason, which could also be political, they disable the internet connection, and we lose the connection to the Azure environment. It might be good for our country to have a private link to the Azure cloud environment to avoid such cases.

We have a lot of Microsoft partners who are helping us. Therefore, support is not a problem for us.

We have QRadar for our on-premise solutions. QRadar has a lot of connectors out of the box. It has a lot of predefined and pre-deployed connectors that you can use. 

QRadar also has a lot of good correlation rules. From a customer's point of view, it is one of the best solutions because you don't need to create correlation rules from scratch. You just review them and customize them as you want.

QRadar supports using SQL queries. Sentinel uses KQL, but you need to learn it from scratch.

QRadar doesn't have a SOAR system by default. You need to purchase it additionally, which is the main problem with QRadar.

It was easy.

We had some introduction to the system from a Microsoft Partner, but most of the analytics and playbooks were created by us.

For us, it is not expensive at this time, but if we start to collect all logs from our on-premise SIEM solutions, it will cost more than QRadar. If we calculate its cost over the next five or ten years, it will cost more than what we paid for QRadar.

Microsoft is proposing an identity management solution for Azure Active Directory systems and the Azure Cloud system, but we need an on-premise solution that can help us achieve the same with, for example, IBM. I know that Microsoft has a cloud-based solution, and previously, Microsoft provided an on-premise solution, but it is deprecated or no longer supported. It will be good to have such a service on-premises.

I would rate it an eight out of ten.

We actually use it for queuing logs and checking log systems that we have downloading from other devices to see if there are any issues. For example, if we get an alert, then we triage it and query the logs and the devices that we're looking for.

Microsoft Sentinel has greatly increased our security. We can quickly complete our investigation by using Sentinel and get to the results and escalation points.

The log query feature has been the most valuable because it's very good. You can put your data on the cloud and run queues from Sentinel. It will do it all very fast. I love that I don't have to upload it to an Excel file and then manually look for a piece of information. Sentinel is much faster and is good for big databases.

Microsoft Sentinel is able to figure out what type of attack is occurring. It will tell you whether it is a DDoS attack, whether someone's trying to scam the site, or if someone is doing a group force attack. That is, Microsoft Sentinel will actually tell you what it is based on the type of activities it's seeing on the web server. It's a smart tool.

If I'm typing queries, it knows what I'm looking for.

If I can use Sentinel offline at home and use it on a local network, it would be great. I'm not sure if I can use Sentinel offline versus the tools I have.

I just started using Microsoft Sentinel and have used it for two months.

As for availability, I haven't seen any downtime or any issues with the services yet. The stability looks like it's 99.9% and is great.

I believe that Sentinel is good at scaling up their database or services. We are a large company with big data and have thousands of users.

I have used Splunk, which has similar log type of queries. I feel that Sentinel is smarter. It is able to detect what type of attacks are occurring, unlike Splunk, which is just a query log tool.

There's Elastic ELK, which is similar to Splunk, but it isn't a smart tool like Sentinel is. 

Sentinel is at the top of the tools that I've used so far in terms of smart tools.

Pricing is pay-as-you-go with Sentinel, which is good because it all depends on the number of users and the number of devices to which you connect.

If you're using the cloud and Azure, I would really recommend Sentinel as it will keep making sure that the devices that you have in your environment are safe. Sentinel is very smart at detecting what type of attack is occurring and is actually able to detect and tell us the type of hash file. It is is able to go on the internet, look at the virus total, and see if this is a virus, scam, or phishing. I like how it's able to detect it and how we can make it learn what type of spam or email issue query it is. So, it's a very adaptive type of tool.

I would rate Microsoft Sentinel at ten on a scale from one to ten.

We primarily use many Microsoft products, including Microsoft 365 with a focus on the security aspect. We have Defender for endpoints and Defender for servers. We also use Azure Sentinel with these.

This product has improved the way our organization functions. I won't be able to provide exact metrics as I don't directly work with metrics, however, from an improvement perspective, it is just a more streamlined deployment. 

We also use Intune as part of the MDM. If there are any agents that need to be deployed, then we can use that or we can just configure Windows from MDM directly. A lot of things can be just set up out-of-the-box and are ready to go and it sends logs right to Azure Sentinel. Therefore, while I don't have hard numbers, it's definitely made deployments easier and is much less time-intensive for our organization.

Coming from other SIEM solutions, Sentinel seems to be pretty good. 

It's pretty powerful and its performance is good.

The most powerful aspect is the whole integration with the Microsoft ecosystem. If you have the Microsoft 365 subscription, E5, then it integrates pretty seamlessly with everything you're trying to do. 

You obviously have connectors with other third-party, non-Microsoft stuff as well. They have pretty good integration with those. 

Azure Sentinel has a lot of built-in analytics rules, that help us get started in terms of triggering anomalous activity. In terms of performance, they're pretty fast. I've used QRadar and Splunk. Compared to Azure Sentinel those are pretty slow. Some searches in Sentinel are pretty instantaneous. For bigger searches, it's a very noticeable and impressive turnaround.

There are a lot of features that I don't touch just because I'm in the SOC. That said, I know customers have deployed different items that are quite useful. 

The end-user experience is good. It's just pretty seamless. When I was onboarded, it was just a simple download and then a sign-in to my account. It'll basically configure everything for you and download the necessary stuff that the company has defined - including Defender, et cetera. 

Microsoft needs to stop renaming their stuff. A lot of their products are very confusing due to the names they choose. The first time I heard of Defender I assumed it's just their antivirus, anti-malware, or a package that covers those things. However, there's Defender, Windows Defender, and then there's Defender for Endpoint, and there's also Defender for servers, et cetera. That really needs to be streamlined. As far as Defender's concerned, they want just a protective device. The differences are confusing.

Maybe it's a transitional choice, however, they've been doing a lot of migrations to a new portal in the security center or office privacy center. There's a bunch of portals where some things are repeated or duplicated. You have the same features in the portals, yet, in some cases, there are some things that you have to go to one portal and not the other, as it hasn't been migrated or the feature is just not there.

If their UI was a bit more streamlined and easy to find when I need it, then that would be a great improvement.

I've been using the solution for one year.

The stability is pretty good. However, there is one flaw. We did have an issue where Microsoft had some issues with some components that caused issues with their cloud. It might have been an authentication issue or something like that, however, it basically took down everything. We weren't able to work. While integration is good if something comes from one vendor and if that vendor goes down, then everyone is pretty unhappy.

While at my previous organization we had about 50 or 60 users, as a small company, we had customers that could have users in the thousands.

I didn't notice any scalability issues, and therefore I assume it's quite good. With respect to Azure Sentinel, I've never had an issue.

As far as I know, we're using pretty much everything that Microsoft has from a security perspective. I don't know how we can expand anymore.

I've never had to call technical support or reach out to technical support, therefore, I can't speak to how they operate.

I've previously used SentinelOne for endpoints and antimalware, et cetera, and Splunk for the SIEM.

I was specifically working in SOC; I was more responsible for the day-to-day operations. Unfortunately, I cannot speak to the deployment so much. I would not have information on the implementation strategy, for example.

We handled the deployment internally.

I was in the SOC. I don't deal directly with that pricing. They do have multiple licensing levels. It's just about knowing what you need. One good thing about Microsoft is that they do have quite a few options depending on your needs. That said, sometimes it could be hard to pick because there are so many. 

As an organization, you need to understand the company's needs. For example, if you don't have a security team to look at your alerts or to set up all the stuff, then you probably don't need some of their most expensive services. You need to purchase the subscriptions accordingly if you're able to leverage them.

They have premium and enterprise subscription levels. I don't know what the standard would be. They have E3 and E5 level licensing. I don't know off the top of my head the differences, however, E5 likely has more security features. Companies need to be aware of all the differences.

I was not part of any evaluation process. I came to the company afterward. 

I'm not sure which version of the solution we're on. We have another team that does the deployment and they would take care of the versioning, et cetera, however, we usually run the latest.

Microsoft makes Windows. They know their stuff. Having everything streamlined can be time-saving. It's good to have an integrated system rather than using something else. You don't need to jump through a lot of hoops or install additional software in order to get everything up and running.

I'd rate the solution at an eight out of ten.

We use the solution as more of a security management tool. It's a combination of monitoring and security management.

The most valuable features of this solution are the analysis and the automation. The security automation and orchestrations are great. Other tools, which I can't really name right now, don't have the potential automation this has. They do to a certain extent, however, we have to go ahead and integrate other different solutions on top. On the other hand, with Azure Sentinel, we have out-of-box solutions within Azure using Azure playbooks, where we can automate, filter, and complete tasks that reduce the manual effort. That comes under security automation and orchestration. An incident or an alert can be generated, a playbook can be triggered and completed. The manual effort can be reduced via automation.

The analysis is an important feature. It gives us a deep analysis of not just the alert, but also checks on the dependent resources or to ensure dependency matching is correctly done. We can see, with any issue, how deep it's affecting us, for example.

Sentinel has features that have helped improve our security poster. It helped us in going ahead and identifying the gaps via analysis and focusing on the key elements.

Sentinel has not affected the end-user experience in any way. These are basically integrated with solutions from Microsoft or vendor solutions. Therefore, the end-user experience doesn’t change.

The solution could improve the playbooks. As of now, we are customizing those playbooks for our needs. However, if there were out-of-box solutions available, which could automate a few tasks by default, that would really be of great help.

I've used the solution for over two years.

Performance is not something that we need to worry about as this is a service from Microsoft, and the underlying infrastructure of Sentinel is fully managed by Microsoft. All we need to do is go ahead and get started with the service. Once we have enabled Sentinel, it's all about integrating it with other logs. That's it. 

Scalability is something that's pretty easy in terms of integrating it with other log workspaces. I know there is a cost involved, however, in terms of scaling, it's pretty easy.

We have huge applications with a user base of about 10,000 to 25,000 users for this application. In terms of the end-users who have resources like VDI solutions or other solutions, there are about 5,000 to 7,000. Therefore, end-users and application users are different. 

Technical support is pretty straightforward. It's a no-brainer around that. They have standard SOPs they follow. There's nothing out-of-box that they provide as a solution as such as that is something that needs to be customized. If there is any customization, support, they would not be able to help us. It's all about going ahead and following the standard SOP.

They know what they're doing. However, when it comes to Sentinel, a lot of customizations are required, which support doesn't provide any assistance around.

I've worked with various other SIM solutions. There are only a few other competitors or SIM tools, which also have AI-based analysis.

With Microsoft, the advantage is that it can correlate with a lot of other solutions as Azure itself is a cloud provider and they have a lot of environments that they go ahead and manage in terms of the SIM. They can go ahead and have correlation on alerts. The AI can go and learn from other infrastructure and can also analyze everything in a better way. That's not the same case with other vendors or other competing SIM tools.

In terms of the automation part, for other vendor SIM tools, we'll have to go ahead and integrate it with a third-party provider and basically build a custom script for automation. With Sentinel, we have out-of-box solutions for automation where Azure playbooks really come in handy.

It's a service from Microsoft, so there is nothing else that needs to be deployed. We just go ahead and enable it. It hardly takes five minutes to get started by enabling Sentinel.

Sentinel is a pretty straightforward product. In terms of the advanced configurations, security automation and orchestration, that's a bit complex. That said, getting started with Sentinel is an easy process.

I would say that there's definitely a Return of Value. I can't really comment on Return on Investment yet.

We have seen a lot of manual codes being reduced and a focus on real issues, which are really impactful rather than going ahead and analyzing or monitoring each and every alert. With our Sentinel AI-based analysis, we can go ahead and focus on the critical issues rather than monitoring each and every alert or incident.

Licenses won't work as this is a pay-as-you-go model. Companies pay in terms of the number of logs being integrated within Sentinel, and the price is quoted that way. Sentinel is pretty pricey compared to the other competitors where they have licenses. For Sentinel, it's a bit pricey when it comes to big environments.

For those who want to adopt Sentinel, I'd advise that it's a really one-stop solution for all the security needs. It can be integrated with all solutions out there. It can be one single control where you can go ahead and manage the security from. You don't have to go ahead and log into different endpoint portals, or threat-protection portals, or any third-party vendor solutions as such. 

I would rate the solution at about a nine out of ten. There is definitely a scope of improvement in terms of the feature sets or the possibilities that we could go ahead and unlock.