MacBook Air (13-inch, 2016) does not come with built-in杀毒软件. However, there are several杀毒软件 available for macOS, including Avast, Malwarebytes, and MacKeeper. These products can be added to your MacBook Air through the App Store or through the command line using the `macOSX` package manager.
It's important to note that while杀毒软件 can help protect your MacBook Air from恶意软件 and other threats, they are not a complete solution. Other important security measures, such as strong密码 and regular磁盘清理, should also be taken to ensure your MacBook Air is secure.
It's also a good idea to keep your MacBook Air and other personal devices up-to-date with the latest software updates to ensure they run smoothly and avoid any security vulnerabilities.