This is a notice that has come up on the forum since the news about the backdoor in the Chinese Alldocube tablet, which was discovered by the security firm Kaspersky.
The Affected Models paragraph below lists four models whose firmware has been confirmed to contain a backdoor.
They say they plan to sequentially release updated firmware via OTA updates by March 5th.
https://x.com/alldocube/status/2027051707122041193