Microsoft fixes broken Excel copy and paste for all Office users
Summary
Microsoft has released a fix for a bug in Excel that prevented users from copying and pasting data. This issue arose after the installation of the September 2026 security updates. The company has confirmed the fix is now available for all Office users.
IFF Assessment
FOE
This article describes a software bug impacting a widely used application, which can be exploited by attackers or disrupt legitimate operations.
Defender Context
While not a direct security vulnerability, software bugs like this can sometimes be leveraged by threat actors to cause denial-of-service or facilitate more complex attacks. Defenders should ensure their users are aware of and apply the latest patches and updates to prevent disruption.