We are AMTSO

AMTSO is the Anti-Malware Testing Standards Organization, a community of over 60 security and testing companies from around the world. We create objective standards and best practices for testing of anti-malware and related products.

We provide free tools to help anyone – from home users to professional testers – confirm that their security products are working properly.

AMTSO mission is to promote advanced cybersecurity testing, because the best testing encourages better products that increase customer protection. 

What we do

Testing standards

AMTSO's Testing Protocol Standard provides a framework for transparent, unbiased testing. Fair tests empower users to find the best protection.

Standard compliance

All tests following AMTSO's Standard publish detailed test plans to show how they are designed and run, as well as feedback from those being tested.

Free tools

AMTSO's Security Features Check (SFC) free tools let anyone confirm that their protection is properly installed, correctly configured, and fully operational.


AMTSO is a community of over 60 member organizations from across the security and testing industries. Our members drive everything we do.

Latest news

AMTSO welcomes NSS Labs decision to dismiss its lawsuit

Today AMTSO learned that NSS Labs has applied to have its lawsuit against AMTSO and several AMTSO members dismissed. A statement from NSS Labs is available here. “While AMTSO welcomes NSS Lab’s decision to dismiss, its actions were disruptive, expensive, and without merit,” said Ian McShane, AMTSO Board Member and Senior Director of Security Products at Elastic. “However, we agree with its statement that ‘sunshine is the best disinfectant,’ and we’re looking forward to NSS Labs re-joining AMTSO, and to its voluntary participation in standard-based testing. We believe this will give customers a greater assurance that the tests were conducted fairly.”

Reader beware when test results are used in marketing

Responsible test labs aim to provide reports which are fair, clear, and balanced. But when test data is referenced by vendor marketing, there are many ways it can be manipulated. In this post, AMTSO looks at some ways this manipulation can be done, and stands firmly against the misrepresentation of test results for marketing purposes.

AMTSO members

How to support AMTSO

AMTSO stands for integrity, responsibility and fairness in testing: