Re: MDs & Dentists

[Stefan Monnier <monnier@iro.umontreal.ca>]

Thomas Schmitt [2021-07-21 20:11:15] wrote:
> Stefan Monnier wrote:
>> Plain old HDDs and SSDs also work for "immutable" backups: just don't
>> keep them connected to the host after you've done the backup.
> But how do you keep the system from messing them up during the first
> backup after the malware took over ?

That's what

    keep a handful of external SSDs to which you backup "in rotation"

is about.  Of course, if the time between the moment the malware takes
control and the moment when you notice it is longer than your rotation
you might be in trouble, indeed (tho that depends on the details of how
the malware operates w.r.t removable media).

Then again, this implies that all the work you've done between those two
moments would likely have been lost just as well if you backed up to
a BD-R.


        Stefan