Matousec’s testing is basically “leaktest”.
Bitdefender, a first-rate Antivirus (generally top at AV-test) scrapes a 50% on Matousec test 1) and a 30% fail on test 2.
PS. It’s funny how Comodo has ALWAYS done well at Matousec… Bitdefender is ALWAYS top at AV-TEST. Not saying any test is untrue, but if you set the test profile, you can choose to play to one product’s strengths, while punishing another’s weakness by several similar tests.
Another thing to watch, some free ones do allow commercial use, others explicitly prohibit, and some just don’t say…
Comodo - 100% - specifies free for both personal and commercial
Immunet - also specified
Nano - take care, described as BETA and "no restriction"
Unthreat - EULA unclear, but confirmation received
Further down that list, the others are only free for nonprofit