I’m doing financial work. How safe is it if the program and specifically the
data are never actually written to disk except when doing operations?
In this excerpt from
Answercast #99 I look at the idea of minimizing the time that data is used
and whether it will make you more safe on the internet.
Become a Patron of Ask Leo! and go ad-free!
Improving data security
Well, it’s a little unclear as to exactly what you mean by “doing
operations” but I will say this: it’s no more or less safe than any other
The fact is that if malware compromises your computer it can basically do
anything! That means that it can access the data that’s stored on your disk; it
could access the data that’s being processed in RAM. It can do a lot of
So, the best thing by far is to, naturally, avoid malware. Do all of the
things that it takes to keep your computer safe on the internet. Run
anti-malware scans. Make sure you’re behind a firewall. Keep your system up to
Use good behavior – that’s probably the single most important thing. Don’t
download things you’re not supposed to download; you know the drill; right?
This is all pretty much internet common sense these days. So I’ll point you
at the article, “Internet
Safety: How do I keep my computer safe on the internet?” but to
specifically answer your question, I don’t think the kinds of things that I
think you’re describing actually make a difference.
(Transcript lightly edited for readability.)
Next from Answercast 99- Is Skype
recording my private video calls?