Industry anti-virus tests would be the easy answer, but unfortunately, not all vendors participate. Cylance is one of several so-called next generation AV vendors that say they rely on a combination of machine learning and algorithms to detect malicious behavior. The new approaches by next-gen AV vendors mean that some malicious code may not be detected right away. As a result, new vendors may not appear to be as effective in a simplistic test of one product vs. another against a set of malware samples.”]
Source: https://www.cuinfosecurity.com/blogs/cylance-to-engage-in-av-software-tests-p-2204