That anything is not completely secure is a truism.<p>In what way? Compared to what?<p>Linux is not as secure as some research-level operating systems, but that comparison is not very useful for most people. Among mainstream operating systems, Linux contains comparably few surprises.<p>There's also the fact that, like with much of open source, when the developer's interest align with yours the tools get more effective. Contrary to what you read on the Internet, most actors in the Linux ecosystem take security seriously.<p>That the article references Spengler and Micay says a lot. That's like referencing the UNIX Hater's Handbook. That handbook was mostly right, but also not very practical. But over time it has done more for unix than most other texts, because it was mostly read by unix developers. The situation with these guys is mostly the same. A lot of the ideas voiced by them has been the basis for new features, just not in the form they were made originally.