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We have thousands of posts on a wide variety of open source and security topics, conveniently organized for searching or just browsing.

Why Not Use Port Knocking?  13 April 2012 
Source: That grumpy BSD guy - Posted by Pooja Shah   
The robots currently at work knocking around for your guessable password could easily be repurposed to guess your Unicode password currently known as your port knocking sequence, and quite likely have been already. Plus, we already have authpf(8) for network-level restrictions on access.
Why Linux Needs Malware Protection  28 March 2012 
Source: Consumer Electronics - Posted by Dave Wreski   
“This is very embarrassing.” So began a post by the developers of UnrealIRCd server after finding that their software was infected with a Trojan. Another example of why enterprises should consider the safe haven of Linux? Just the opposite: The Trojan infected only the Linux version of the server software, but its Windows counterpart was clean.
DNSSEC Error Caused NASA Website To Be Blocked  26 January 2012 
Source: Dark Reading - Posted by Anthony Pell   
The hazards of early DNSSEC adoption: A misconfiguration in NASA’s Domain Name System Security Extensions (DNSSEC) implementation on its website caused Comcast’s network to block users from the site last week.
The myth of 'bulletproof' Linux  17 January 2012 
Source: IT World Canada - Posted by Alex   
Security consultant: Users who don't run antivirus software on Linux “working in favour of the hackers” Starry-eyed Linux desktop enthusiasts could become passive conduits for malware, security experts warn.
Database Security Proxies  23 December 2011 
Source: Dark Reading - Posted by Alex   
The last database activity monitoring (DAM) model I want to address is the proxy model. This is the final installment of my trends series, following the business activity monitoring, ADMP and the policy driven security model.
Security Issues for Multicore Processors  14 December 2011 
Source: IT Business Net - Posted by Anthony Pell   
If hackers love one thing, it’s a big pool of potential targets, which is why Android and Windows platforms are attacked far more often than BlackBerry and Mac OS X. So, it’s no surprise that as the installed base of multicore processors has grown, they’ve become a potential target.
Techniques for disguising hacker attacks  07 December 2011 
Source: SC Magazine - Posted by Dave Wreski   
There are methods for attacking networks that even cutting-edge security systems cannot detect, and Advanced Evasion Techniques (AETs) are one example.
Whose Job Is Virtualization Security?  22 November 2011 
Source: Information Week - Posted by Alex   
As network boundaries blur and longstanding design paradigms fall by the wayside, how do we assign accountability for security? It's a pressing question: Because virtualization gives us so much power and flexibility, we're moving ahead at a breakneck pace, often without looking closely at whether security-assurance levels remain as the services delivery model morphs.
Sloppy use of Amazon cloud can expose users to hacking  10 November 2011 
Source: InfoWorld - Posted by Alex   
Using Amazon's EC2 (Elastic Compute Cloud) can pose a security threat to organizations and individuals alike, though Amazon's not to blame, according to researchers from Eurecom, Northeastern University, and SecludIT.
Case study: Using remote access securely  14 September 2011 
Source: CSO Online - Posted by Alex   
A data-breach-investigations report issued by Verizon earlier this year found 71 percent of all hacking attacks on business take place using remote access or desktop service.
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