I have previously used Tenable IO.

I'm aware of other solutions. 

What makes Nessus outstanding is the different options. There are so many scanning options. They give you the room to be flexible. You can scan your server how you want. Other options may just allow for a general scan of my system. With Nessus, I can streamline and customize my scan. 

I previously used Qualys and had a bad experience. It's not very user-friendly, licensing was difficult and deployment painful. I also used Rapid7, and I think Nessus is more user-friendly than both of those products. 

We were not using any other products before this.

I have not used another solution previously to Tenable Nessus.

OpenVAS. We reached the previous level/threshold/maturity using OpenVas (more limited tool when compared with Nessus). I/We believe that, the change to a better tool (in this and in others categories) should be carried out when these indicators are reached.

We've used Rapid7 in the past. We switched because of the value for money and the fact that it feeds into the Tenable.io platform, which is where we ultimately want to be.

We chose Tenable Nessus because we primarily rely on open-source products as a publicly funded institution. About ten years ago, we conducted research to determine the best option, and at that time, it stood out as the preferred choice.

I have previously used Acunetix and they are more focused on web applications instead of vulnerability assessments. Tenable Nessus lacks in this area, they should focus more on the web applications side.

We are also working with Rapid7 InsightVM.

It is not as good as Rapid7 from our perspective, but it is part of our toolbox arsenal. As a result, we have it on board and solely use it internally.

We used Qualys previously. 

We were on Rapid7. We switched because of scalability and performance.

We were looking for a solution that could handle and scan our volume of assets. It wasn't working with our previous solution. Nessus has scalability. Being able to scan in time and actually being able to report on that data were things we couldn't do with our old solution.

Also, the level of visibility that Tenable provides is much better than Rapid7 because we're able to actually see all of the data that was collected and we're able to scan for vulnerabilities and config issues and pull all the data together. We were having real trouble with that before.

I used Nessus from JSON for a Gold image and vulnerability scans in my previous role.

I'm also seeking the same type of tenant for internal vulnerability scans like Qualys. 

We now use Qualys, but we haven't fully utilized its features, but I'm searching for something specialized for our internal vulnerability scan program.

I have used Teams, ON24, and Citrix.

The difference between Nessus and Rapid7 is price. Nessus is a very cheap solution compared to Rapid7 and has unlimited IP scanning facilities, but Rapid7 doesn't have this option. It has IP limitations. Rapid7 has some models based on how many IPs the customer wants to scan, and the costs depends on that amount.

I did not use an alternate solution prior to Tenable Nessus and have been using it since the inception of my career in information security. 

Previously, I was not using another solution. I use Nessus through a course that I was taking in the security field.

We previously used McAfee and switched over completely at the end of May.

Before Nessus, I used Qualys. I switched because the reporting in Nessus is better. The reporting in Nessus is more executive-friendly. When giving information to clients, I don't need to repackage it. It is fine the way it is.

The level of visibility Nessus provides, compared to a solution like Qualys, from an executive standpoint, is better. From a technical standpoint, it does not provide you that documentation capability that I would like. Having said that, from my standpoint, for my client base, the executive reporting is better.

In the company, Qualys was used, and it was not possible to manage the projects with this tool.

Before Tenable, our global team used Qualys, but I myself didn't use that. The switch to Tenable was decided on by our U.S. team. It was a global strategy to move to Tenable.

Many years ago, we tried Nexpose by Rapid7.

We also evaluated Netplus. 

We switched because our previous solution was too expensive for us.