Security researchers have detected the first in-the-wild instance of hackers are making use of malicious macros in Word documents to install malware on Mac computers and steal your data. The attack tricks victims into opening infected Word documents that subsequently run malicious macros. Mac users are always prompted to enable macros when opening a suspicious Word document. If enabled, the embedded macro executes a function, coded in Python, that downloads the malware payload to infect the Mac PCs, allowing hackers to monitor webcams, access browser history logs, and steal password and encryption keys.
Source: https://thehackernews.com/2017/02/mac-osx-macro-malware.html