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1 | 1 | ---
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2 | 2 | title: Privacy and security for Office Add-ins
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3 | 3 | description: Learn about the privacy and security aspects of the Office Add-ins platform.
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4 |
| -ms.date: 02/12/2025 |
| 4 | +ms.date: 06/17/2025 |
5 | 5 | ms.localizationpriority: medium
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6 | 6 | ---
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7 | 7 |
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@@ -66,10 +66,23 @@ You can make your Office Add-ins available to the public by publishing them to A
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66 | 66 |
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67 | 67 | End users and IT admins can turn off [optional connected experiences in Office](/deployoffice/privacy/optional-connected-experiences) desktop and mobile clients. For Office Add-ins, the impact of disabling the **Optional connected experiences** setting is that users can no longer access add-ins or the Microsoft 365 and Copilot store through these clients. However, certain Microsoft add-ins that are considered essential or business-critical, and add-ins deployed by an organization's IT admin through [Centralized Deployment](/microsoft-365/admin/manage/centralized-deployment-of-add-ins) will still be available. Additionally, add-ins and the Microsoft 365 and Copilot store remain available in Outlook on the web, regardless of the status of the setting.
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68 | 68 |
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69 |
| -For more about Outlook-specific behavior, see [Privacy, permissions, and security for Outlook add-ins](../outlook/privacy-and-security.md#optional-connected-experiences). |
70 |
| - |
71 | 69 | Note that if an IT admin disables the [use of connected experiences in Office](/deployoffice/privacy/manage-privacy-controls#policy-setting-for-most-connected-experiences), it has the same effect on add-ins as turning off just optional connected experiences.
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72 | 70 |
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| 71 | +### Optional connected experiences in Outlook |
| 72 | + |
| 73 | +The following table describes the availability of add-ins on Outlook clients when optional connected experiences is turned off. |
| 74 | + |
| 75 | +|Client|Behavior when optional connected experiences is turned off| |
| 76 | +|-----|-----| |
| 77 | +|<ul><li>Web browser</li><li>[new Outlook on Windows](https://support.microsoft.com/office/656bb8d9-5a60-49b2-a98b-ba7822bc7627)</li></ul>|Availability of add-ins and access to AppSource are unaffected, so users can continue to [manage their add-ins](https://support.microsoft.com/office/1ee261f9-49bf-4ba6-b3e2-2ba7bcab64c8), including admin-deployed ones.| |
| 78 | +|<ul><li>Windows (classic)<sup>1</sup></li><li>Mac</li></ul>|The **All Apps**<sup>2</sup> or **Get Add-ins** button isn't displayed, so users aren't able to manage their add-ins or access AppSource.| |
| 79 | +|<ul><li>Android</li><li>iOS</li></ul>|The **Get Add-ins** dialog shows only admin-deployed add-ins.| |
| 80 | + |
| 81 | +> [!NOTE] |
| 82 | +> <sup>1</sup> On Windows, support for this experience is available from Version 2008 (Build 13127.20296). For more details on your client version, see the update history page for [Microsoft 365](/officeupdates/update-history-office365-proplus-by-date) and how to [find your Office client version and update channel](https://support.microsoft.com/office/932788b8-a3ce-44bf-bb09-e334518b8b19).<br> |
| 83 | +> |
| 84 | +> <sup>2</sup> Starting in classic Outlook on Windows Version 2303 (Build 16215.10000), the **All Apps** button is used to manage add-ins and access AppSource. |
| 85 | +
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73 | 86 | ## Addressing end users' privacy concerns
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74 | 87 |
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75 | 88 | This section describes the protection offered by the Office Add-ins platform from the customer's (end user's) perspective, and provides guidelines for how to support users' expectations and how to securely handle users' personally identifiable information (PII).
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@@ -109,7 +122,31 @@ The add-in platform addresses end users' privacy concerns in the following ways.
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109 | 122 |
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110 | 123 | - Running in a web browser control allows the add-in to do almost anything a regular web page running in a browser can do but, at the same time, restricts the add-in to observe the same-origin policy for domain isolation and security zones.
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111 | 124 |
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112 |
| -Outlook add-ins provide additional security and performance features through Outlook add-in specific resource usage monitoring. For more information, see [Privacy, permissions, and security for Outlook add-ins](../outlook/privacy-and-security.md). |
| 125 | +#### End users' perspective in Outlook |
| 126 | + |
| 127 | +The following points address end users' privacy concerns specific to Outlook. |
| 128 | + |
| 129 | +- End user's messages that are protected by Outlook's Information Rights Management (IRM) won't interact with add-ins in the following instances. |
| 130 | + |
| 131 | + - When the IRM-protected message is accessed from Outlook on mobile devices. |
| 132 | + |
| 133 | + - When the IRM-protected message contains a sensitivity label with the **Allow programmatic access** custom policy option set to `false`. |
| 134 | + |
| 135 | + For more information on IRM support in add-ins, see [Mail items protected by IRM](../outlook/outlook-add-ins-overview.md#mail-items-protected-by-irm). |
| 136 | + |
| 137 | +- Granting the **restricted** permission allows the Outlook add-in to have limited access on only the current item. Granting the **read item** permission allows the Outlook add-in to access personal identifiable information, such as sender and recipient names and email addresses, on only the current item. For more information on Outlook add-in permissions, see [Understanding Outlook add-in permissions](../outlook/understanding-outlook-add-in-permissions.md). |
| 138 | + |
| 139 | +- Manifest files of installed Outlook add-ins are secured in the user's email account. |
| 140 | + |
| 141 | +- Outlook on Windows (classic) and on Mac monitor the performance of installed Outlook add-ins, exercise governance control, and make add-ins unavailable when they exceed limits in the following areas. |
| 142 | + |
| 143 | + - Response time to activate |
| 144 | + |
| 145 | + - Number of failures to activate or reactivate |
| 146 | + |
| 147 | + - Memory usage |
| 148 | + |
| 149 | + - CPU usage |
113 | 150 |
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114 | 151 | ### Developer guidelines to handle PII
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115 | 152 |
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@@ -178,11 +215,7 @@ The following example shows how a task pane add-in specifies the **read document
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178 | 215 |
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179 | 216 | For more information about permissions for task pane and content add-ins, see [Requesting permissions for API use in add-ins](../develop/requesting-permissions-for-api-use-in-content-and-task-pane-add-ins.md).
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180 | 217 |
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181 |
| -For more information about permissions for Outlook add-ins, see the following topics. |
182 |
| - |
183 |
| -- [Privacy, permissions, and security for Outlook add-ins](../outlook/privacy-and-security.md) |
184 |
| - |
185 |
| -- [Understanding Outlook add-in permissions](../outlook/understanding-outlook-add-in-permissions.md) |
| 218 | +For more information about permissions for Outlook add-ins, see [Understanding Outlook add-in permissions](../outlook/understanding-outlook-add-in-permissions.md). |
186 | 219 |
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187 | 220 | ### Follow the same-origin policy
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188 | 221 |
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@@ -306,10 +339,11 @@ The management and enforcement of Office settings is done with group policy sett
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306 | 339 | | Block Web Add-ins | Allows you to prevent users from running Office Add-ins that use web technologies. |
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307 | 340 | | Block the Office Store | Allows you to prevent users from getting or running Office Add-ins that come from [AppSource](https://appsource.microsoft.com). |
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308 | 341 |
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| 342 | +To specify permissions to install and manage Outlook add-ins in an organization that uses Exchange Online, configure administrative and user roles in the Exchange admin center. For more information, see [Specify the administrators and users who can install and manage add-ins for Outlook in Exchange Online](/exchange/clients-and-mobile-in-exchange-online/add-ins-for-outlook/specify-who-can-install-and-manage-add-ins). |
| 343 | + |
309 | 344 | ## See also
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310 | 345 |
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311 | 346 | - [Requesting permissions for API use in add-ins](../develop/requesting-permissions-for-api-use-in-content-and-task-pane-add-ins.md)
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312 |
| -- [Privacy, permissions, and security for Outlook add-ins](../outlook/privacy-and-security.md) |
313 | 347 | - [Understanding Outlook add-in permissions](../outlook/understanding-outlook-add-in-permissions.md)
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314 | 348 | - [Limits for activation and JavaScript API for Outlook add-ins](../outlook/limits-for-activation-and-javascript-api-for-outlook-add-ins.md)
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315 | 349 | - [Addressing same-origin policy limitations in Office Add-ins](../develop/addressing-same-origin-policy-limitations.md)
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