(Updated) Microsoft Teams introduces efficiency mode to improve app responsiveness

🚨 The Signal: Teams Efficiency Mode automatically adjusts video resolution and app launch behavior on resource-constrained devices. This aims to improve performance but may subtly alter data transmission characteristics.

The Impact

Users on hardware-constrained devices are affected, with a low security risk related to potential changes in video data quality.

• Users: May experience reduced video resolution in meetings.
• Users: App launches without pre-selected chat, showing static image.
• Security Teams: Need to be aware of dynamic video resolution changes.

The Action

1. Review existing data handling policies for video quality requirements in Teams meetings.
2. Communicate to users on hardware-constrained devices about the new Efficiency Mode indicator and its implications for video quality.
3. Advise users on how to opt out of Efficiency Mode via Settings > General > 'Never use efficiency mode' if full video quality is critical.

Domain: Teams · Impact: low · Workload: Teams