Why don't they release iron antivirus? Which is stored in the board, which is placed in the motherboard??

Question

Antivirus

Why don't they release antivirus software in hardware?? Which will be stored in the board that is placed in the motherboard?? After all, this one cannot be hacked, let it be stored in the motherboard and updated, everything is encrypted.

Answer 1

After all, this can not be hacked,

What is it?
The meaning of a hardware antivirus for a home PC? Expensive, impractical, meaningless, requires access to RAM and memory.
Similarly, with the same TPM, which is easier to emulate than to install an iron one.

Answer 2

They have been producing for a long time, ranging from antiviruses that are stored on the SSD disk board that is plugged into the motherboard, ending with antiviruses on the usb board that are stuck into the motherboard.
Yes, and it seems like they don’t hack antiviruses, it’s too complicated, usually they just write such malicious code that disguises itself as legal and the antivirus does not notice it.

Answer 3

There are not only pure antiviruses, but trusted boot boards that check the integrity of the operating system and specific program files and system.
Examples:
https://www.okbsapr.ru/products/accord/accord-amdz/
https://dallaslock.ru/products/sdz-dallas-lock/
I heard that there are such boards with built-in antiviruses that check files before the OS was launched, but now I can not find it.
Also earlier, when there was a distribution of cryptolockers aimed at ordinary home users, there were various attempts to find and save encryption keys from RAM at the hardware level, on a separate board, using DMA. Hardly anywhere it was used seriously.
At the moment, gamers are quite actively using hardware DMA boards for cheating in games. Such boards are either difficult to detect or impossible at all: https://blog.esea.net/esea-hardware-cheats/