Microsoft Copilot rollout delayed as security survey shows two‑thirds

Microsoft Copilot’s rollout is being stalled by security concerns, with a CoreView survey finding 66% of organizations have delayed or cancelled deployment because the AI could surface confidential data, and a new Patch Tuesday update exposing a remote‑code vulnerability in the assistant [1][3].

Survey shows senior leaders hitting the brakes

The CoreView State of Microsoft 365 Security and Governance 2026 report, released 21 July, revealed that two‑thirds of surveyed firms have either delayed or cancelled their Copilot rollout over fears the AI could leak confidential SharePoint information [1]. The hesitation is strongest among senior executives, with three‑quarters of C‑level respondents instructing a pause, and 60% of managers doing the same. Respondents cited confusion over Copilot’s access permissions and the risk that the assistant could surface a decade’s worth of sharing links and mis‑configured permissions that had never been cleaned up. The report links this caution to prior Microsoft 365 security incidents tied to missing foundational controls such as MFA, privileged‑access management, or configuration‑tamper detection [1].

Patch Tuesday highlights a concrete flaw in Copilot

Microsoft’s July 2026 Patch Tuesday shipped fixes for 570 security flaws—nearly three times the prior month’s count—and among them was a remote‑code execution vulnerability in Copilot [3]. The flaw could have allowed an attacker to take control of the assistant simply by luring a victim to a malicious website via Edge on Android. This concrete exploit underscores the broader survey concerns: the same underlying data‑governance gaps that could let Copilot surface sensitive information also create a direct attack surface. Microsoft attributes the surge in discovered bugs to AI‑driven code analysis, but independent researchers note that AI‑generated proof‑of‑concept exploits may outpace existing risk‑rating models [3].

What to watch

• Copilot rollout milestones – monitor Microsoft’s announcements on phased deployments or additional security controls such as mandatory PAM for Copilot accounts.
• Future Patch Tuesday releases – watch for further Copilot‑related fixes that could indicate lingering vulnerabilities.
• Enterprise adoption metrics – follow updates from CoreView or similar surveys for changes in the percentage of organizations moving past the delay stage.

The convergence of survey‑driven hesitation and a tangible remote‑code flaw suggests that Copilot’s security posture will be a decisive factor in its enterprise adoption, and the next set of Microsoft updates will likely shape whether the AI assistant can overcome current trust barriers.