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Cisco Secure Email Threat Defense vs Darktrace comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 21, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Cisco Secure Email Threat D...
Ranking in Email Security
27th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
16
Ranking in other categories
No ranking in other categories
Darktrace
Ranking in Email Security
8th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
82
Ranking in other categories
Intrusion Detection and Prevention Software (IDPS) (2nd), Network Traffic Analysis (NTA) (1st), Network Detection and Response (NDR) (1st), Extended Detection and Response (XDR) (6th), Cloud Security Posture Management (CSPM) (14th), Cloud-Native Application Protection Platforms (CNAPP) (10th), Attack Surface Management (ASM) (4th), AI-Powered Cybersecurity Platforms (2nd)
 

Mindshare comparison

As of October 2025, in the Email Security category, the mindshare of Cisco Secure Email Threat Defense is 1.1%, up from 0.9% compared to the previous year. The mindshare of Darktrace is 2.6%, up from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Darktrace2.6%
Cisco Secure Email Threat Defense1.1%
Other96.3%
Email Security
 

Featured Reviews

Enrique-Diaz Jolly - PeerSpot reviewer
Provides comprehensive threat protection with suggestions for modernizing controls
I use the email gateway as the core of the email exchange between the Internet and our domain. The email gateway serves as the email exchanger The product offers protection, email security, anti-spam, and antivirus. It includes threat intelligence with advanced malware protection and many…
Malebo Lethoba Group - PeerSpot reviewer
Have found the AI analyst and detection functions highly valuable for network operations while managing complexity in initial setup
The functions I find most valuable in Darktrace are the AI analyst as well as the detection.The autonomous response capabilities of Darktrace are not crucial for me because it doesn't work in a network where there are no core switches. In a modern network, the autonomous response doesn't work, especially when sitting in a shared data center.If I'm running a traditional network where I am not in a shared data center with a layer two dedicated for my resources, then it can work for me. However, if I am in a data center where I don't have layer two, it becomes an issue because the autonomous response is reliant on sending spoofed TCP resets to my core switch to block traffic, which is a major issue.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The features and functionalities are much better than Microsoft's in-built Defender plan."
"The advanced threat analytics and URL filtering in threat detection are good features that are working well."
"I highly recommend it as one of the best choices."
"Cisco Secure Email Cloud Mailbox can handle a complete portfolio, which is required to protect any kind of attack coming from emails. However, it does not have advanced phishing, but it is available through Cisco. If you compare Cisco Secure Email Cloud Mailbox with the competition, in the competition you have to have one or two solutions together to address the customer's requirement, whereas Cisco Secure Email Cloud Mailbox is addressing everything, such as web domain and email protection. If there is any kind of challenge it will come across through email."
"It has an efficient email filtering feature."
"Regarding stability, Cisco Secure Email Threat Defense is very stable."
"It's very easy to deploy and configure."
"Cisco has a threat mechanism called cloud-based Talos, where all the threats are inbuilt."
"The most valuable features of Darktrace are its full capabilities. You have visibility of everything."
"The most valuable feature is the solution's ability to trim out the false positives and point your attention to the real important stuff."
"The NDR is good in their solution and they have NTG for email."
"I am impressed with the product's ability to give insights into network traffic."
"The most valuable feature has been the behavioral analytics that allows us to monitor all the traffic."
"The product offers us a very good user interface and we've found the network visibility to be very good so far."
"I highly recommend the overall solution to other users and rate it as nine out of ten."
"Ability to see events and exactly what traffic or website the device had tried to connect to that raised the alert or issue."
 

Cons

"The tool gives false positives and it needs to be more accurate. I would like to see AI as a new feature."
"This solution could be improved by integration with Sandbox."
"The behavioral analysis capability of Cisco Secure Email Threat Defense is not particularly helpful for identifying new, evolving threats within my company, as it keeps flagging legitimate emails as malicious."
"The product's complexity at times results in redundant rule sets that are difficult to untangle, highlighting the need for streamlined management systems and a more user-centric approach to system configuration."
"The search area has room for improvement. When you go to the next page, it remains at the bottom of the current page that you're on. Also, under the reports section, it allows you to see any "convictions," but if you want to search for those convictions you have to remember when they all came in and go back and edit the search accordingly. You cannot click on the list of convictions to actually see if you had a spike at a certain time."
"The physical appliance has been discontinued, although the platform still exists."
"We encounter issues while searching for missing emails."
"The learning curve shows that in the beginning, there are numerous false positives. For one month, we had to reclassify the false positives manually until the system learned."
"Darktrace is a closed technology, meaning we know very little about how it works, including the architecture, which is significant. As a result, when we implement the system and find we're getting many false positives, we have minimal insight into why it's happening and what we can do to fix it. We don't know how the solution is configured, the criteria for threats to be determined, or the product's inner workings. We understand that they have to ensure privacy and their copyright, but we want to see some documentation or public research into the security Darktrace provides."
"In terms of improvements, fine-tuning is the area where we have to spend some time because it works on unsupervised machine learning. It would be good if they can improve their algorithm or technical functionality to reduce the fine-tuning effort. They can also come up with something at the endpoint level. So far, Darktrace has been a network detection response (NDR) solution. It does not offer much at the endpoint level or on user-client devices or servers. There should be more visibility at the endpoint level. It would be good to have the detection and response at the endpoint level by Darktrace. It should also have integration with an agile environment so that we can have continuous development and continuous integration in the application development environment. This is currently not there. It should also have internet-facing platform visibility, which is currently missing. They also need to improve the reporting and management dashboards. Currently, these are not so easy for a non-technical person. All these features would make Darktrace much better, and they would also be helpful in selling more solutions."
"The pricing model is a little too high and could be more flexible."
"A reporting portal could be a great addition to help customize reports."
"Upper management wasn't sold on the value proposition."
"It could build in integrations for some complementary products, but it has an assistant plugin so this is not really a big deal."
"In a shared environment, it doesn't work, and there are still some integration issues."
"The solution can improve the reporting."
 

Pricing and Cost Advice

"The solution’s pricing is manageable."
"Cisco Secure Email Cloud Mailbox does not have any competition with Sophos, Trend Micro, or other vendors of the world. However, there is a pricing premium for the solution. One has to look at it from that angle that while they are buying Cisco, there will be a premium, and Cisco justifies that premium value. That's why they're charging a high price."
"It is expensive compared to other vendors."
"The feedback from vendors and customer is that it is expensive."
"The pricing is expensive. It costs over $100,000 a year."
"Darktrace is pricey, but the price is reasonable for what the solution does, and it's comparable to other products."
"There is an annual license to use Darktrace."
"The cost of the solution is expensive for smaller businesses. They will not be able to afford it or might not need this type of security solution."
"It was $3,600 a month or $2,000 plus or so. I am not sure. Its licensing is pretty simple."
"The price of Darktrace is high and could be reduced. We pay approximately $30,000 to $54,000 annually."
"The cost is moderate."
"All of the other modules, such as the licensing modules, are on par. It's one for one."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Manufacturing Company
8%
Healthcare Company
8%
Government
7%
Computer Software Company
12%
Manufacturing Company
9%
Financial Services Firm
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise6
Large Enterprise7
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise19
Large Enterprise29
 

Questions from the Community

What is your experience regarding pricing and costs for Secure Email Threat Defense?
Comparatively with other products, the pricing of Cisco Secure Email Threat Defense is normal. As a technical guide, I am not very aware of the pricing details.
What needs improvement with Secure Email Threat Defense?
We have deployed Cisco Secure Email Threat Defense in two customer environments. It is still in development as a new product. Some customer requirements, such as sending logs to a Syslog server, ar...
What is your primary use case for Secure Email Threat Defense?
We are working with Cloud Mail Gateway and on-premise mail gateways. We have worked with Cisco Secure Email Threat Defense.
How does Crowdstrike Falcon compare with Darktrace?
Both of these products perform similarly and have many outstanding attributes. CrowdStrike Falcon offers an amazing user interface that makes setup easy and seamless. CrowdStrike Falcon offers a cl...
Which is better - SentinelOne or Darktrace?
Which solution is better depends on which is more suitable specifically for your company. Darktrace, for example, is meant for smaller to medium-sized businesses. It is also a good option for organ...
What do you like most about Darktrace?
A very useful feature in Darktrace for real-time threat analysis is the packet inspection that analyzes the packet traffic in real time.
 

Also Known As

Cisco Secure Email Cloud Mailbox, Cisco CMD, Cisco Cloud Mailbox Defense
No data available
 

Overview

 

Sample Customers

Luiss University, Lone Star College, T-Systems, Magyar Telekom
Irwin Mitchell, Open Energi, Wellcome Trust, FirstGroup plc, Virgin Trains, Drax, QUI! Group, DNK, CreaCard, Macrosynergy, Sisley, William Hill plc, Toyota Canada, Royal British Legion, Vitol, Allianz, KKR, AIRBUS, dpd, Billabong, Mclaren Group.
Find out what your peers are saying about Cisco Secure Email Threat Defense vs. Darktrace and other solutions. Updated: September 2025.
869,513 professionals have used our research since 2012.