Rod Speed wrote:

Tim Watts wrote
Rod Speed wrote
Andy Burns wrote
Rod Speed wrote
Tim Watts wrote

I don't accept an exactly 0 risk is possible on any non isolated
computer.

Corse its possibile, most obviously with a full restore from image
after every use on the net with a box used for browsing for example.

Then your backup image becomes the target,

Cant be if its not net accessible.

if it's on readonly medium it gets mysteriously swapped

The ****ing great Alsatian and the CCTV system ensures
that it cant be without a record of that happening.

... depends on you adversary, but the risk is definitely 0

Fraid not.

They hack your CCTV

Not even possible, and even if it was, its trivial to record that that
happened.

Specifically how? If the recording were got at and a section were spliced in
with great care to replace the bit with the incriminating parts on?

If your CCTV contains scenes of the sky with clouds or waving trees, I
accept this would be difficult. If the CCTV is pointing at a wall across
from a walkway, it would be relatively easy for someone who knows what they
are doing to replace a scene with an earlier section repeated.

and drug your dog.

Not even possible, and even if it was, its trivial to record that that
happened.

No? Dart gun then - or is your dog armoured too?

For every assertion I can produce a counter assertion,

Yes.

which no matter how silly, is still possible.

Fraid not.
--
Tim Watts