Session Information

In today’s Microsoft 365 environments, access to data is spreading faster than ever. Teams, SharePoint sites, OneDrive folders, guest users, external sharing links, and now AI assistants like Copilot are creating new paths to your most sensitive information.

The problem isn’t a lack of security tools.
The problem is lack of visibility causing immense oversharing leading to situations where most organizations no longer know:

• Who really has access to what
• Where sensitive data actually lives
• Which links, groups and apps are exposing information
• What AI can and cannot see

In the age of AI, oversharing becomes a critical risk multiplier. AI can only work with the data it can access. If access is too broad, your risk grows exponentially.

Why data oversharing happens

• No way to see the whole picture of the data sharing landscape across OneDrive, Teams and SharePoint
• Years of unmanaged permissions in SharePoint and Teams
• Forgotten guest accounts and external users
• Open links with “Anyone can view” access
• Manual audits that can’t keep up with change
• Growing use of AI connected to all of the above

Most organisations already face this problem – they just can’t see it yet.

The missing layer: observability and control

To solve data oversharing, you first need complete visibility:

• What data is accessible?
• Where is it located?
• Who can reach it – internally and externally?
• How is access changing over time?

With the right tools in place, organisations can move from manual reviews to continuous observability– an interactive, real-time view of their Microsoft 365 environment,  including permissions, sensitivity, sharing patterns, and AI exposure.
But visibility alone is not enough. You also need control and automation to reduce risk fast and at scale.

How 1Security helps you stop oversharing

• Automatic detection of sensitive data exposure
• Real-time monitoring of permission changes and risky configurations
• Identification of overexposed files, sites, and links
• Control over how AI and apps access data
• Automated remediation (removing risky links, expiring guest accounts, restricting access)
• Instant, audit-ready compliance reports

Instead of reacting to incidents, organisations move to proactive prevention.

Why this matters now

AI is already connected to your data. If you don’t know who can see what, neither does your AI strategy.

With the right observability and control, AI becomes a secure advantage — not a liability.

Clarity leads to control.
And control is the foundation of secure collaboration in the AI era.