New feature-M365 Copilot Chat can now answer questions about the currently open page


Microsoft introducing a new capability in Copilot Pages that allows Copilot Chat to answer questions based on the contents of the currently open page. This enhancement supports more efficient workflows by enabling users to get contextual answers directly within the side-by-side Chat experience, without needing to switch views or search manually.

When this will happen:
General Availability (Worldwide): We will begin rolling out in early October 2025 and expect to complete by early November 2025.

How this affects your organization:

  • Who is affected: Users with access to Copilot in Microsoft 365 who use Copilot Pages and Copilot Chat in side-by-side mode.
  • What will happen:
    • Users will be able to ask questions in Copilot Chat about the currently open page in Copilot Pages.
  • Copilot will respond using the content of the open page to provide contextual answers.
  • The feature will be ON by default for eligible tenants to configure.
  • Existing admin policies are respected; no policy changes are required.

What you can do to prepare:

  • Communicate this change to helpdesk and support staff.
  • Update internal documentation or training materials that reference Copilot Pages or Chat functionality.
  • Review user guidance to ensure users understand how to use Copilot effectively in side-by-side mode.

Learn more:  Manage Copilot Pages and Copilot Notebooks in your organization | Microsoft Learn

Compliance considerations
No compliance considerations identified, all compliance capabilities will be the same as the Microsoft 365 Copilot Pages experience.

Jo The Ciphermind: A Comic Journey Through Data, Privacy, and Security in Microsoft 365 Copilot


Hello Friday 🎉 !
It’s time to unwind with a great story. Who doesn’t love comics?
I certainly do! So, let’s dive into my comic story and introduce you my character…
My new Tech Comic: Meet Jo Valiant the Guardian of Digital Realms & AI Ethics


🆕 Character
🦸 Name: Jo Valiant
✍ Alias: The Ciphermind
🚨 Role: Guardian of Digital Realms & AI Ethics
🗒️ Catchphrase: “Decode The Chaos.”


In a futuristic digital landscape where data flows like storms and privacy is constantly under threat, emerges Jo The Ciphermind—a guardian clad in encrypted armor and equipped with a mind shielded by advanced privacy protocols. Jo is not just a character but a symbol of resilience and vigilance in the realm of Microsoft 365 Copilot. With glowing blue accents and a brain symbol illuminated on the chest, Jo represents the fusion of human cognition and artificial intelligence. The headphones signify constant connectivity, while the surrounding icons—a padlock, AI chip, shield with a brain, and fingerprint—highlight Jo’s mission to protect data, ensure privacy, and uphold security. This slide introduces Jo as the protagonist of our comic-style journey, setting the stage for an engaging exploration of how Microsoft 365 Copilot integrates these critical elements into its ecosystem.

Balance of Innovation and Integrity
Jo’s journey highlights the balance between advancing AI innovation and upholding responsible data stewardship.

Jo’s Mission
Jo The Ciphermind’s mission transcends individual battles—it’s about empowering users with transparency, control, and trust in Microsoft 365 Copilot.

To be continue…

Set an expiration date for email encrypted by Microsoft Purview


When you apply your company brand to customize the look of your organization’s email messages, you can also specify an expiration for these email messages. With Microsoft Purview Advanced Message Encryption, you can create multiple templates for encrypted emails that originate from your organization. Using a template, you can control how long recipients have access to mail sent by your users.

When an end user receives mail that has an expiration date set, the user sees the expiration date in the wrapper email. If a user tries to open an expired mail, an error appears in the OME portal.

You can only set expiration dates for emails to external recipients.

With Microsoft Purview Advanced Message Encryption, anytime you apply custom branding, Microsoft 365 applies the wrapper to email that fits the mail flow rule to which you apply the template. You can only use expiration if you use custom branding.

  • Microsoft 365 E5 subscription
  • Compliance Administrator Permissions

How to create a custom branding template to force mail expiration by using PowerShell

  1. Using a work or school account that has sufficient permissions in your organization, such as Compliance Administrator, start a Windows PowerShell session and connect to Exchange Online. For instructions, see Connect to Exchange Online PowerShell.
  2. Run the New-OMEConfiguration cmdlet

Where:

  • Identity is the name of the custom template.
  • ExternalMailExpiryInDays identifies the number of days that recipients can keep mail before it expires. You can use any value between 1–730 days.

More information about Microsoft Purview Advanced Message Encryption

Data Loss Prevention: Restrict Microsoft 365 Copilot from processing emails with sensitivity labels


Microsoft Purview’s Data Loss Prevention (DLP) now allows you to prevent Microsoft 365 Copilot from processing emails and other content marked with specific sensitivity labels by configuring DLP policies in the Microsoft Purview portal.

By creating a DLP policy with the “Content contains > Sensitivity labels” condition for the Microsoft 365 Copilot policy location, you can restrict Copilot from using this sensitive content in its responses and summarizations, thereby enhancing data protection.

This feature will allow DLP policies to provide detection of sensitivity labels in emails as enterprise grounding data and restrict access of the labeled emails in Microsoft 365 Copilot chat experiences. This feature only works for emails on or after 1/1/2025.

How this will affect your organization:

Organizations with no existing DLP for Microsoft 365 Copilot policies are not impacted. Customers with the required licenses will be able to go to the Microsoft Purview portal to create policies in the Data Loss Prevention solution. Admins can also go to Data Security Posture Management for AI (DSPM for AI) to see recommendations for creating Microsoft 365 Copilot policies.

Admins should create a new DLP policy using the Copilot location to use this feature:

Check also Microsoft Rodmap

Microsoft Teams: Copilot in Teams can analyze content shared on-screen during a meeting (Roadmap ID 325873)


Microsoft Copilot will be able to answer questions based on content shared onscreen during a Teams meeting.

Microsoft: “Copilot will be able to understand slides, documents, spreadsheets, and websites, or anything else shared onscreen. Users will be able to ask simple recall questions, such as “Show me the content that was shared on the screen” or more specific questions like “what was the Sales target number” if it was shared on a previous slide. Users will also be able to combine screen-share with transcript and chat data to ask, “Show me all the slides and the feedback on each slide,” or “Rewrite the paragraph based on the comments from the audience”.”

Microsoft Update at August 2025

After further review, we are not able to continue rolling this out at this time. We apologize for any inconvenience. Now, Copilot in Teams can analyze content shared on-screen during a meeting when recording is enabled. This, along with meeting transcript and meeting chat, enables users to ask Copilot to summarize or find specific information from screen-shared content (e.g., ‘Which products had the highest sales?’), consolidate insights across both the conversation and presentation (e.g., ‘What was the feedback per slide?’), and draft new content based on the entire meeting (e.g., ‘Rewrite the paragraph shared on the screen incorporating the feedback from the chat’). This works for any content shared while sharing your desktop screen (including but not limited to documents, slides, spreadsheets, and websites, irrespective of platform or app). Support for PowerPoint Live and Whiteboard in Teams will be available at a later date.

Expected Release: August 2026

Security Copilot Agent in Microsoft Purview Overview (preview)


Microsoft has introduced Security Copilot agents in Microsoft Purview (preview) to assist organizations automate and scale triage across Data Loss Prevention (DLP) and Insider Risk Management (IRM). These AI-powered agents are built on the Microsoft Security Copilot platform and leverage Security Compute Units (SCUs) to reason over alerts, analyze content, and priorities risk—at scale.

The Microsoft Purview Triage Agents run on Security Compute Units (SCU). Your organization must have SCUs provisioned for the agents to run SKU/subscriptions licensing.

When you deploy an agent, and when you edit triggers, you can select whether the agent will run automatically based on a set schedule or Agent will run manually on one alert at a time . If you select Run automatically based on a set schedule, the agent will triage the alerts that are included in the Select Alert timeframe setting.

Microsoft Defender: Updates to Export Quarantine Message cmdlet


Microsoft Defender is updating the Export-QuarantineMessage cmdlet to include a new -PasswordV2 parameter for plain text passwords, replacing the old -Password parameter. Microsoft offer the -PasswordV2 parameter as a new experience that allows admins and users to pass plain text for their passwords when exporting Quarantine items in PowerShell cmdlet. Admins and users should use the -PasswordV2 parameter, because using the previous -Password parameter may cause errors and Password won’t be available in the longer term.

For files that were quarantined by Safe Attachments for SharePoint, OneDrive, and Microsoft Teams, the files are exported in Base64 format.

Use the Export-QuarantineMessage cmdlet to export quarantined messages and files from your cloud-based organization. Messages are exported to .eml message files so you can open them in Outlook.

PowerShell:

$f = Export-QuarantineMessage -Identity 9c6bb3e8-db9e-4823-9759-08d594179bd3\7fec89fe-41b0-ae67-4887-5bede017d111
$bytes = [Convert]::FromBase64String($f.eml)
[IO.File]::WriteAllBytes("C:\My Documents\Quarantined Message with Attachments.eml", $bytes)

This example exports the specified message with attachments that was quarantined as malware:

  • The first command exports the quarantined message and attachments to the variable $f. The message and attachments are stored in the Eml property (the $f.eml value) as Base64 (based on the $f.BodyEncoding value).
  • The second command converts the Eml property from Base64 to bytes and stores the result in the variable $bytes.
  • The third command writes the quarantined message and attachments to the specified .eml file.

MAJOR UPDATE: Upcoming Changes for M365 Copilot Chat with Link Safety


Microsoft announce some important updates to M365 Copilot Chat that will enhance security and user experience, following: 

  1. Integration with SafeLinks:
    • M365 Copilot Chat will integrate with SafeLinks in Defender for Office 365 to provide time-of-click URL protection for the hyperlinks included in its chat responses. 
    • This change applies to users with Microsoft Defender for Office 365 Plan 1 or Plan 2 service plans. No policy configuration is needed within the SafeLinks policy.
    • Within Microsoft Defender for Office 365 Security Center, URL protection report will show the relevant summary and trend views for threats detected and actions taken on URL clicks.
  2. Native Time-of-Click URL Reputation Check:
    • For users without SafeLinks protection (which is available as part of Microsoft Defender for Office 365), M365 Copilot Chat will natively enable time-of-click URL reputation check for the hyperlinks returned in its chat responses. 
  3. Hyperlink Redaction Changes:
    • M365 Copilot Chat will no longer redact hyperlinks in its chat responses if they are found in the grounding data used to generate the responses.

When this will happen:

General Availability (Worldwide): We will begin rolling out in late March 2025 and expect to complete by late May 2025.

Rollout will start on desktop and web and will complete with mobile versions. We plan to extend these updates to Copilot Chat experiences in Office apps in the future.

How this will affect your organization:

These updates are designed to enhance the security of the links included in M365 Copilot Chat response, ensuring that users are protected from malicious URLs.

What you need to do to prepare:

You may consider updating your training and documentation as appropriate to ensure users are aware of the change in behavior with hyperlinks in M365 Copilot Chat.

New usage report for new Microsoft Outlook for Windows and classic Outlook for Windows


A new usage report for the new and classic Microsoft Outlook for Windows is being added to the Microsoft Exchange admin center.

This is the same data made available via the Microsoft 365 admin center usage report in March and is intended to make the data more easily accessible to Outlook admins who regularly use the Exchange admin center.

When this will happen:

General Availability (Worldwide): We began rolling out early May 2025 and expect to complete by late May 2025.

How this will affect your organization:

The new report Outlook for Windows Usage will be added to the Reports section in the EAC. This report will provide admins with detailed insights into user activity on the new Outlook for Windows versus the classic Outlook for Windows. The report includes a line chart showing the sum of users by endpoint over different time periods (days/weeks/months) and a data table with columns for email address, last activity date, and usage status for new and classic Outlook. You can export the data to csv and filter and search in the report.

The new report will be available by default in the Exchange admin center at Reports > Outlook for Windows Usage:

Examples of User details reports:

What you need to do to prepare:

This rollout is happening automatically by the specified dates with no admin action required before the rollout. Review your current configuration to assess the impact on your organization. You may want to update any relevant documentation.

Familiarize yourself with the new report and its features. Ensure that your organization’s admins have access to the EAC and are aware of the new reporting capabilities to support their new Outlook migration efforts.

Technical Interview – Glossa Glossa Cloud


Thanking Maria-Anastasia Moustaka & Nikos Delis 🙏 for the wonderful opportunity to join their panel for an engaging interview. It was truly a fantastic experience! 😊 #GlossaGlossaCloud 🎉

You can join here 👇

S01E03 – Joanna Vathis, στιγμές μιας συναρπαστικής καριέρας