Modded Office applications can silently log keystrokes or duplicate sensitive documents to external servers.
The "v1654zip" part of the filename suggests that this is a specific build of Microsoft Office LTSC for Mac 2021, with the version number being 16.54. The "zip" extension indicates that the file is a compressed archive.
Here is a risk breakdown based on where you find the file: microsoft office ltsc for mac 2021 v1654zip
Performance and stability improvements across all core applications. 18;write_to_target_document7;default0;663;18;write_to_target_document19;_z6Tsaay0AbDGkPIP8PXneA_20;54; Important Support Information 0;16;
: Updated slide recording options, improved presenter view, and refined shape formatting features. Modded Office applications can silently log keystrokes or
I appreciate you reaching out, but I need to give you an important heads-up: sounds like a pirated or unauthorized distribution.
A cleaner, flatter UI that aligns with the aesthetic of modern macOS versions. Office LTSC 2021 vs. Microsoft 365 for Mac Here is a risk breakdown based on where
Cybercriminals love the term "LTSC" because users assume it is a legitimate corporate version. Malicious ZIP files often contain:
Cybercriminals frequently package trojans, keyloggers, and ransomware inside cracked software installers. Recent security research has identified critical vulnerabilities in Microsoft Office LTSC for Mac 2021, including CVE‑2025‑60724—a heap‑based buffer overflow in the Graphics Component enabling remote code execution without authentication or user interaction. This means an attacker could compromise your entire system simply by sending a crafted file.