The Network Monitor component is the most advanced on the market. Combined with the other Network DLP components (Prevent for Web, Prevent for Email, Discover and Prevent), Symantec offers one of the best network DLP solutions in the market. Another component that is very valuable from my point of view is the Data Insight component that allows the client to have full visibility into the company data.
ITSM & AntiFraud Consultant at a tech company with 51-200 employees
Data Insight helps clients gain visibility over data usage, ownership and permissions.
Pros and Cons
- "The Network Monitor component is the most advanced on the market. Combined with the other Network DLP components."
- "The Symantec DLP solution is very complex, and installation requires many components."
What is most valuable?
How has it helped my organization?
Data Insight is a very good component that steps outside the standard DLP functions, but helps the client to gain visibility over the data usage, ownership and permissions.
What needs improvement?
The Symantec DLP solution is very complex, and installation requires many components. Also, Oracle is only the DB used by Symantec.
For how long have I used the solution?
I have experience with Symantec DLP since 2013.
Buyer's Guide
Symantec Data Loss Prevention
June 2025

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What was my experience with deployment of the solution?
Sometimes the Oracle instance need to be restarted, when using full Windows deployment.
What do I think about the stability of the solution?
When in a heavy-usage environment, you can have some latency problems when the DLP management page loads. If the problem persists and the loading time is too high, you should restart the service. Usually, this behavior is very rare and I saw it on the Windows implementation.
What do I think about the scalability of the solution?
When implementing the DLP solution, we use the Symantec sizing guide, and we use the recommended configuration. The Symantec DLP license is per user, so it's hard to have issues with scalability
How are customer service and support?
Customer Service:
Usually, we use the local distributor team for issues and they are very OK. When needed, we opened cases at Symantec support, and it was a pretty decent relationship. Some clients complained that they didn't fulfill the request very fast.Starting again this year we have a local vendor presence and that helps us in front of the clients.
Technical Support:Symantec L3 technical support technicians are very good.
How was the initial setup?
Initial setup is straightforward, as you use the same installation kit, and you choose which component to install.
What's my experience with pricing, setup cost, and licensing?
Symantec only sells the DLP software. When you buy, it you should budget the server licenses, the storage and the hardware. Scale your implementation when you have your exact number of the monitored users. Be prepared to extend the resources if you increase the number of users. The Oracle DB is licensed for use only with Symantec.
If you are a small firm with less than 150 users, Symantec can be too pricey.
Which other solutions did I evaluate?
We also evaluated McAfee DLP, WebSense (Forcepoint) DLP, and Digital Guardian.
What other advice do I have?
We are a system integration firm, and we also sell McAfee DLP and WebSense DLP (Forcepoint).
Disclosure: My company has a business relationship with this vendor other than being a customer. I am working for a system integrator and I have experience with other vendors.

Chief Cyber Strategist with 1,001-5,000 employees
Detects percentages of interrogate words within documents. Finds leaks of documents and restricted controlled information.
What is most valuable?
- Detects the percentages of text and interrogate words within documents and emails.
- Finds leaks of documents and restricted controlled information.
How has it helped my organization?
We use it to discover unacceptable employee behavior, such as threats and bullying. It helps us identify insider threats.
What needs improvement?
I would like to see a reduction in false positives.
For how long have I used the solution?
I have used this solution for three years.
What do I think about the stability of the solution?
There haven’t been stability issues with the product. There have been stability issues with the user community when trying to embargo documents.
What do I think about the scalability of the solution?
There were no scalability issues other than some impact on sending large documents when tracking content for restricted data.
How is customer service and technical support?
The technical support has been excellent. We had DLP engineers on site.
How was the initial setup?
The installation was pretty straightforward. We had to adjust for policy allowances. Once the user community gained some experience, we were able to expand the scope.
What's my experience with pricing, setup cost, and licensing?
I have no real comment as we had an enterprise license. Make sure you cover all users and plan growth metrics.
Which other solutions did I evaluate?
We evaluated alternative solutions, but I can't recall which ones. We had an enterprise license and the product integrated with the SIEM well. There was little reason to go outside of the existing contracts.
What other advice do I have?
Take the following steps:
- Go to monitoring for 90 days.
- Start to reduce the allowed events. Start at 100 and reduce by 20 per month.
- Communicate any failures. (Allow for application changes, as legacy apps may be guilty of data transfer that is embedded in the architecture/file transfer.)
Disclosure: My company has a business relationship with this vendor other than being a customer. I have moved on from the USPS and Salient CRGT. I was in a teaming relationship. I did not use the product internally.
Buyer's Guide
Symantec Data Loss Prevention
June 2025

Learn what your peers think about Symantec Data Loss Prevention. Get advice and tips from experienced pros sharing their opinions. Updated: June 2025.
860,592 professionals have used our research since 2012.
Head of Infrastructure at a tech company with 51-200 employees
Best in class data loss and prevention software, requires tuning for the document classification mechanisms.
Valuable Features:
1) Keeps monitoring data and protects sensitive information on computers.
2) One of the very few DLP tools with machine learning capabilities that easily classifies various documents and takes care of many administrative chores.
3) With the help of the above technology, DLP is able to greatly reduce the number of false alarms.
4) Supports various types of encryption mechanisms.
5) Now available for tablets as well.
6) Has support for blocking of data copying to removable media.
Room for Improvement:
1) Use of machine learning algorithm is good when it comes to automate the administrative chores. However, this feature is still unstable and sometimes the document classifier fails to properly classify even a similar looking document, thereby putting the document in a wrong group.
2) The feature of blocking the copying of sensitive data to removable media puts the responsibility on the end user, for correctly identifying the sensitive docs and enforcing the right policies.
3) Should have a feature to completely block USB ports.
4) Detecting P2P communication using ports is not that useful and requires a signature based engine to detect and block peer-to-peer traffic, irrespective of ports used.
Other Advice:
Automated monitoring of sensitive data is a much needed feature. However, the machine learning algorithms that wrongly classify documents is a major problem, when it comes to applying security policies based on document categories. A good feature is the blocking of sensitive data copying to removable storage. DLP is specifically targeted for mid and large enterprises.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
SOC Analyst at a consultancy with 10,001+ employees
Good scalability but management console could be improved
Pros and Cons
- "The most valuable feature is file-level DLP."
- "The console is not the best one. There is room for improvement in the management console."
What is our primary use case?
The solution is pretty stable. They are not bad; they are pretty complete. But I'm not a big fan of Symantec.
What is most valuable?
The most valuable feature is file-level DLP. It gives the possibility of creating rules; it's possible to know when a file is with the laptop or computer and servers. It can be any type of file.
What needs improvement?
The console is not the best one. There is room for improvement in the management console.
For how long have I used the solution?
I have been working with this solution for one year now.
What do I think about the stability of the solution?
The stability is good enough. I would rate it an eight out of ten.
What do I think about the scalability of the solution?
It is a scalable solution. We have this in all geographies nowadays. So, it's very scalable.
I would rate the scalability an eight out of ten.
What other advice do I have?
Overall, I would rate the solution a seven out of ten. Because it's not only a question of technicality, it's a question of privacy, it knows everything, so I don't like it much.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

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