> More likely, they hurt security significantly; for example, see bugs in AV products listed in Google's Project Zero.
This is not an indicator of insecure software. Not dealing with these disclosures are. Just a few weeks ago a major vulnerability was found in Defender.
Let's use my favorite AV as an example, NOD32:
- It performs HTTPS MITM which should obviously be disabled immediately. Score 1 Microsoft.
- Javascript runtime running as SYSTEM, which can't be disabled. Score 1 NOD32.
- There are two issues in Project Zero, making it exactly as secure as Defender according to that ignorant "vulnerabilities in Project Zero" metric.
- 4 days and 1 day for NOD32. 8 days and 3 days for Microsoft. Score 1 NOD32.
> At best, there is negligible evidence that major non-MS AV products give a net improvement in security.
- The NOD32 intrusion detection supposedly thwarted EternalBlue (Wanacry).[1] Defender did nothing. Score 1 NOD32.