: Older or unpatched versions of archive managers like WinRAR have been exploited to install malware into critical system folders when extracting certain archives.
The specific version you've identified——refers to a 64-bit release of Microsoft’s "Long-Term Servicing Channel". This edition is designed for specialized environments, such as regulated systems that cannot receive frequent feature updates or lack constant internet access.
: Pirating software violates copyright laws. Additionally, modified builds are often unstable and prone to crashing. Office 2021 and Office LTSC for Windows and Mac FAQ
: These files are often bundled with ransomware , keyloggers , or trojans . Because the software has been modified to bypass licensing, it can bypass system security during installation.