Gartner suggests Friday afternoon Copilot ban • The Register
Gartner suggests Friday afternoon Copilot ban • The Register
https://www.theregister.com/2026/03/17/gartner_copilot_security_mitigations/
Publish Date: 2026-03-17 00:37:00
Source Domain: www.theregister.com
Gartner analyst Dennis Xu has half-jokingly suggested banning use of Microsoft’s Copilot AI on Friday afternoons, because he fears at that time of week users may be too lazy to properly check its possibly offensive output.
Xu, a Gartner research vice-president, offered the advice at the end of a talk titled “Mitigating the Top 5 Microsoft 365 Copilot Security Risks” at the firm’s Security & Risk Management Summit in Sydney on Tuesday.
He raised the possibility of a Friday afternoon AI ban when advising on the fifth risk he has identified: Copilot producing output that is toxic because while it may be factually correct it is culturally unacceptable either in the workplace or among customers. Xu recommended mitigating Copilot’s tendency to produce toxic content by enabling the filters Microsoft supplies, and by training users to always validate the tool’s output.
The analyst reminded the audience that all Copilot output isn’t fit for sharing without review, making validation necessary for all users at all times. He suggested Friday afternoons are a time when workers might just want to get the job done and won’t bother to check for errors that Microsoft’s chatbot produces, perhaps making that slice of the working week a fine time to ban use of Copilot.
Xu’s talk ran for 30 minutes, and he spent the first 20 discussing the risk of Copilot exposing content whose creators didn’t set appropriate sharing permissions.
“Copilot makes over-shared documents more accessible,” he warned. “This is not a net new risk, but a known risk amplified by AI.” Xu explained why with the example of a worker who uses Copilot to search for information about organizational changes receiving a response that includes a confidential document about an imminent re-org.
Xu said such results are possible because Copilot…
