In short: Hornetsecurity 365 Permission Manager is a cloud governance tool for Microsoft 365. It shows who can access SharePoint sites, OneDrive accounts and Teams, including guests and anonymous links, applies predefined or custom sharing policies, alerts you to critical shares and can remediate violations automatically. It is included in 365 Total Protection Plan 4 and also offered separately.
What 365 Permission Manager is
Microsoft 365 makes sharing easy, which is the problem. After a few years, most tenants have sites shared with "Everyone", files open to anyone with the link, guests from projects that ended long ago and nested groups nobody can explain. Checking this site by site is slow; 365 Permission Manager shows it across the whole tenant and helps you fix it.
This matters more now that Microsoft 365 Copilot can surface any content a user has access to. If permissions are too broad, Copilot can bring salary spreadsheets or board papers into someone's answers. Tightening permissions first is the sensible preparation.
What is included
| Feature | What it does |
|---|---|
| Permission overview | Effective access across SharePoint, OneDrive and Teams, with nested groups broken down |
| Advanced filtering | Find items shared with anonymous users, guests or with broken inheritance |
| Quick Actions | Fix permissions on many sites at once, set external sharing levels, remove "Everyone" access and orphaned users |
| Predefined compliance policies | Best practice policies or your own, applied to sites, Teams and OneDrive |
| Continuous audit | Approve or reject violations, reverting settings to the assigned policy |
| Automated remediation | Removes violations that site owners or admins have not dealt with |
| Critical share alerts | Daily summary of new sharing with "Everyone", guests or anonymous users |
| Reporting | Permission reports for documentation and audits, by site, user or group |
| To-do list | Site owners see their violations and can fix them before admins are involved |
How it is licensed
365 Permission Manager has its own product listing from Hornetsecurity and is also part of 365 Total Protection Plan 4, which also includes DMARC Manager, AI Recipient Validation and Hornetsecurity's awareness training.
| Option | Includes Permission Manager |
|---|---|
| 365 Permission Manager on its own | Yes, quoted separately |
| 365 Total Protection Plans 1 to 3 | No |
| 365 Total Protection Plan 4 | Yes |
Requirements and deployment
It is a cloud service connected to your Microsoft 365 tenant, so there is nothing to install on user devices. Start with reporting only: review what is shared and with whom, agree policies with the business, then switch on alerts and, once owners are used to the process, automated remediation. Delegating fixes to site owners keeps the workload off the IT team.
Who it suits and how we help
Permission Manager suits organisations with years of SharePoint and Teams sprawl, regulated firms that must show who can see personal data under UK GDPR, and anyone preparing for Copilot. See file sharing and collaboration for related tools.
We connect it to your tenant, run the first permissions review with you, agree policies and then help site owners work through their to-do lists. Ask us for a quote.
How Forever Systems supplies your software licences
Forever Systems Ltd supplies business software subscriptions to UK organisations from one account, with one monthly invoice and a UK team who know the products.
- The right edition first time: we check what you need before you buy, so you are not paying for features you will never use
- Monthly or annual terms where the vendor offers them, and help timing renewals and commitments
- Licence changes handled for you: add or remove users, upgrade editions and true-up without starting a new contract
- Deployment and support from engineers who run these products every day, not just a reseller account
- Consolidated billing and renewal reminders so nothing lapses unexpectedly
We work with businesses, schools, charities and public sector organisations of all sizes.
Need a licence quote or a second opinion on your renewal?
Tell Forever Systems what you need and we will come back to you by email with options, not a hard sell.
Contact usFrequently asked questions
What does 365 Permission Manager do?
It shows who has access to SharePoint sites, OneDrive accounts and Teams, flags risky sharing such as anonymous links and guests, applies compliance policies and can fix violations automatically.
Does 365 Permission Manager help with Microsoft Copilot?
Yes. Copilot can surface any content a user has permission to see, so removing excessive access with Permission Manager reduces the risk of sensitive information appearing in Copilot answers.
Is it included in 365 Total Protection?
It is included in Plan 4 Compliance and Awareness, and Hornetsecurity also offers it as a separate service, which suits organisations on Plans 1 to 3.
Do I need to install anything?
No software is installed on user devices. It is a cloud service that connects to your Microsoft 365 tenant once an administrator authorises it.