Nothing is secure if a user decides to open a malicious email or email attachment. This goes for Linux.
Did you read the article?
Agreed. You can set up a very secure system, but then with one momentarily lapse in judgment and a single action it can be compromised.
Unless they are specifically targeting a buffer overflow or something similar in the email client, this is pretty much not true at all. My email client will not let you execute a file just by clicking on it. It will save an attachment to a file if it wants, but when the file is saved, it's executable bit is not set. You have to specifically make the file executable, then run it. No OS on the planet will protect you from a user doing something like that.
However, unless I'm a complete and utter moron, my user is NOT root, so even if I execute something, it is doing so with my own privileges, not as an admin or 'super user'.
Internet Security is made up with multiple levels.
For most home users, the use of residential routers is probably the biggest security hole.
My current home system has 6 levels of security and I’ve never seen anyone get past the first one.
Internet of Things is the 2nd biggest security problem.
You really don’t know what holes exist so you really want all your IOT devices on a unique VLAN.
Smart TV’s are the worst of all the IOT devices.