Windows 10 Mobile lock-screen bug may exposes your pictures.
The bug, discovered by Wallace Michael (@wallace_cane):
Allows anyone to see the pictures in your camera roll without knowing your PIN number.
The PIN workaround works as follows:
- On a locked device, take any photo.
- Preview the photo using the Preview thumbnail (lower left), and after the photo has been opened, delete it using the trash bin icon.
- Press the Back button.
- Preview the photo again, using the thumbnail. You should see a black screen.
- Press the back button and Preview the photo using the thumbnail for a 3rd time.
You should now be able to swipe through all the photos and videos in the camera roll.
The flaw likely has more privacy than security implications.
Update: Latest Insider Build does not appear to be vulnerable to this issue.