Turn off video when the workstation is locked
When locking the workstation, the video stream should automatically stop sending video to avoid that others in the call can watch your room while your workstation is locked and you're away. Someone else walking up to your computer will see only the lock screen and may not be aware that the camera is turned on and transmitting video.
Now for security related topics, this get more relevance. Please your help MS.
Agree with above. Been WFH for the last six months like a lot of people. When I leave my computer I lock the screen (windows+L). We have to do this in the office and it is a force of habit. I even do it when I'm the only one at home! I was very surprised when I realised it didn't automatically mute my mic, cut my video, and cut the sound. For various reasons I don't want any of those three things happening when I'm not by the computer. Most of my reasons are the same as what has already been said.
Most often I have to quickly leave my computer to answer the door (my wife is disabled and has a habit of ordering stuff online...) I don't have time to find the various buttons that I need to press. I just want to lock and go! (To paraphrase an 80s UK shampoo advert.)
There could be an option screen with those three things being optionally cut when locking the screen. Users who want to leave them all running when the screen is locked could leave them all unticked, Or can customise to suit.
I am very much surprised that this is happening. A locked workstation should never continue broadcasting anything. One may argue that incoming audio to a local workstation is still allowed, but microphone and video are stopped. This way it can be prevented that information can be leaked (un)intentionally.
This is also a problem with Skype. Audio from the call continues to play even if the screen is locked. However it is possible to put a skype call on hold before locking the screen which stops this issue. I am still learning about Teams. Is it possible to put yourself "on hold" in a Teams meeting?
Ted May commented
The current situation is counter intuitive, AV active when the PC is deliberately locked.
Preferably it should be user selectable, and when the screen is locked and either is enabled, the lock screen should show a warning and the audio should make a sound to attract the users attention to the warning (in case the user has already turned away).
Video absolutely must be turned of by default when the screen is locked. NOT doing this is a privacy disaster waiting to happen.
Audio is more open to question. Blocking audio would interrupt the users involvement in the meeting if (for whatever reason) they couldn't use the keyboard for a period but wanted to stay in the call, but on other occasions audio is just as personally sensitive as video.
My preference would be-
1) BOTH audio and video are stopped from streaming (outbound) by default if the user's screen is locked.
2) The default behaviour of either can be changed, independently, as a user setting, to "keep stream open while screen is locked"
3) The user is informed of these settings when they join a call, and given the option to change them on a per-call basis, either at the start of the call or midway.
4) (This might be tricky to implement)- If the screen locks and a stream is open, the user is given a visual warning on the lockscreen.
at a minimum a pixelation or screening to inidcate the screen is locked which will also prompt users to stay focused at the communication in hand at the time ..
Tim Cooke commented
User expectation in this scenario is that audio/video transmission should cease when the user locks a workstation. For audio and video to continue to be broadcast when the user has a genuine expectation that it is safe to walk away is a significant security and privacy concern. This issue appears to affect all virtual meetings platforms, not just Teams.
This really is a security and privacy concern, especially as so many of us are working in our home environments