Microsoft Excel KB5002914 update breaks copy and paste for some users

Summary

A recent Microsoft Office security update, KB5002914, has caused issues for some Microsoft Excel users, specifically breaking copy-and-paste functionality and formula dragging. Users have found that uninstalling or rolling back the update resolves these problems.

IFF Assessment

FOE

This update, while intended to be a security patch, has introduced a functional bug that negatively impacts users, which is bad news for defenders and users alike.

Defender Context

While this article focuses on a functional bug rather than a direct security exploit, it highlights the potential for even security-focused updates to introduce unintended consequences. Defenders should be aware that patches, even those from reputable vendors like Microsoft, can sometimes cause operational disruptions, and thorough testing before widespread deployment is crucial to avoid impacting user productivity.

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