Author/Source: Zero-day means the company just learned about the flaw, and it’s day zero for fixing it. Remote code execution means a hacker can run programs on your computer from another location. See the full link here
Takeaway
This article is about a security problem in Microsoft Office that hackers were already using to attack computers. Microsoft released a fix to protect users from this threat.
Technical Subject Understandability
Beginner
Analogy/Comparison
It’s like a hole in the wall of your house that burglars are using. Microsoft is patching up that hole to keep the burglars out.
Why It Matters
This flaw allowed hackers to take control of computers through Microsoft Office. For example, someone could open a Word document and unknowingly give a hacker access to their files and personal information.
Related Terms
Zero-day, remote code execution
Tech Teacher 
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