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ACF2 vs IBM Resource Access Control Facility vs Top Secret comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

As of October 2025, in the Mainframe Security category, the mindshare of ACF2 is 13.0%, up from 8.3% compared to the previous year. The mindshare of IBM Resource Access Control Facility is 15.9%, up from 16.1% compared to the previous year. The mindshare of Top Secret is 14.8%, up from 12.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Mainframe Security Market Share Distribution
ProductMarket Share (%)
IBM Resource Access Control Facility15.9%
Top Secret14.8%
ACF213.0%
Other56.3%
Mainframe Security
 

Featured Reviews

reviewer1077621 - PeerSpot reviewer
A reliable, scalable product for security and auditing of our mainframe environment
It is a good product. It has been used for years. As long as it is configured correctly, it is a very stable product. It depends on how an institution or a company configures it. It depends on an institution's risk appetite. You need to make sure it is configured as per the concept of least privilege, and the logging features, detection and control mechanism, and other things like that are enabled. If you configure it to give access to the public, then there could be compromises. You should also have someone who independently checks it to make sure that it is configured keeping security in mind. If it has been configured for a while, when there are enhancements to the product or when you enhance it, you need to make sure that security is also looked at, and it is configured according to an institution's security policies. I would rate it a nine out of 10.
KC
We're able to do role-based security so when new people join the company we're able to quickly add them to the proper security through role-based security groups.
It's completely secure. That's the best answer I can give you. We're able to do role-based security so when new people join the company we're able to quickly add them to the proper security through role-based security groups. Our resources are secured with this product I would welcome something…
it_user814482 - PeerSpot reviewer
All the features help ensure we are compliant with banking regulations
Top Secret is our external security manager for our mainframe systems It's an integral part of all of our mainframe security functions. It's the core of our mainframe security functions. It helps ensure that we are compliant with all of the various banking regulations, security regulations and…
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Top Industries

By visitors reading reviews
Financial Services Firm
25%
Comms Service Provider
10%
Retailer
10%
Manufacturing Company
9%
Financial Services Firm
29%
Insurance Company
9%
Manufacturing Company
8%
Computer Software Company
7%
Financial Services Firm
23%
Computer Software Company
10%
Real Estate/Law Firm
10%
Comms Service Provider
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise1
Large Enterprise4
No data available
By reviewers
Company SizeCount
Small Business1
Large Enterprise8
 

Comparisons

No data available
 

Also Known As

CA ACF2
IBM RACF
CA Top Secret
 

Overview

 

Sample Customers

Sky, Rogers Communications
Information Not Available
First Tennessee Bank
Find out what your peers are saying about IBM, CyberArk, Broadcom and others in Mainframe Security. Updated: October 2025.
870,623 professionals have used our research since 2012.