The following Foscam MJPEG based video cameras (firmware version .54) can be accessed without a password: FI8904W, FI8905E, FI8905W, FI8906W, FI8907W, FI8909W, FI8910E, FI8910W, FI8916W, FI8918W, FI8919W
Foscam will be posting a firmware upgrade on their website to fix this issue. Unfortunately, most users will never know about it.
Test Your Camera - A quick way to verify and confirm if your camera has this
issue:
1. Enter your camera's IP address in your web browser. Example: 192.168.1.101
2. When you see the password screen do not enter a User Id and
Password. Simply click the OK button. If you see your camera, you have the problem.
Use this work-around for temporary protection (here), and be sure to upgrade the firmware when it becomes available (here).