You're misreading the sentence. ""7. Threatening user security: Windows has a long history of security vulnerabilities, enabling the spread of viruses and allo

You're misreading the sentence. ""7. Threatening user security: Windows has a long history of security vulnerabilities, enabling the spread of viruses and allowing remote users to take over people's computers for use in spam-sending botnets." It states that the "long history of security vulnerabilities" enables and allows exploits, which is true. The obvious inference is that Microsoft has allowed that long history to persist, thus enabling the exploits. This is an accusation of incompetence, not malice.