If an automated backup might automatically backup malware, shouldn’t I backup manually when I know things are clean?

In this excerpt from
Answercast #49, I look at the idea that backing up manually will prevent
malware from being backed up. It’s just not so.

Scheduling backups

I disagree with you actually, and I disagree fairly strongly.

• It’s much too easy to skip doing backups when you have yourself in the
  loop.

• In other words, when the backups rely on you remembering or reacting to a
  reminder or anything like that.

Backing up viruses

Now, the problem that you are mentioning about backing up Trojans and
viruses and so forth. Yes, it absolutely happens.

• If you get a virus on Tuesday;

• Then the backup you take Tuesday night will, in fact, include the virus in
  the backup.

But a proper backup system will let you do something very important and that
is:

• They will let you restore your machine to the state it was on Monday;

• Or some time before the infection occurred;

• Which means that everything that happened on Tuesday is lost.

Yes, if you were doing work on Tuesday, you might lose that. There are still
ways to potentially recover specific pieces of work, but if you recover your
entire system to the state it was on before the virus actually appeared, then
you’ve recovered:

• You’ve got your machine back without the virus;

• And all that is quite possible just using an automated backup system that
  does backups every night;

• Without your needing to think about it.

Automated is better

So, like I said:

• I strongly disagree with making yourself a critical part of the backup
  process.

• Backups are simply too important;

And the reason you are insisting being part of the process, I think, is not
an appropriate one. There are ways to recover to positions prior to the viruses
and malware appearing on your system.

You might not notice malware

Again, don’t take this the wrong way, but:

• Just because you believe a machine is acting appropriately;

• Doesn’t mean that you aren’t backing up something on your machine that you
  didn’t want;

• Like malware, or a virus, or a bot, or something else;

And you may not discover it for several days later. So you may in fact
yourself have manually backed up your virus.

Again, the only way to recover from that kind of thing with a proper backup
system is to restore to a backup that was taken prior to the malware
appearing. An automated backup system makes that easy.