In article , David B.
wrote:

If such rogue software *IS* hidden in pre-existing firmware, how would
an 'average computer user' ever know it was there?

average computer users aren't buying the products bloomberg claims to
be affected.

I've not seen a list of such products. You obviously HAVE seen such a
list or you'd not be able to substantiate your claim. Please provide a
link to the relevant product list.

do your own legwork.

My Apple iMac was made in China.

not necessarily. most are, but not all of them, especially with tariffs
on key components.

https://techcrunch.com/2012/12/03/th...y-apple-in-cal
ifornia-assembled-in-usa/

How can I be *SURE* that there is no
malware resident in the machine, details of which I know nothing?

given your obsession with all things malware, it's best you immediately
cease using your imac, smash it into many pieces, grind it into a fine
powder, seal it in a hazmat container and then safely dispose of it. be
sure to wear protection when doing so.

you can't be too safe.

If it is *hiding in firmware*, no AV or Malwarebytes scan will find it!

false.