Shenzen Tenda Technology IP Camera CP3 V11.10.00.2211041355 does not defend against physical access to U-Boot via the UART: the Wi-Fi password is shown, and the hardcoded boot password can be inserted for console access.
https://github.com/SECloudUNIMORE/ACES/blob/master/Tenda/CP3/tmp_PBA.md
https://github.com/SECloudUNIMORE/ACES/blob/master/Tenda/CP3/tmp_NCD.md