Thank you for reading the LinuxSecurity.com weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headlines.

LinuxSecurity.com Feature Extras:

Peter Smith Releases Linux Network Security Online - Thanks so much to Peter Smith for announcing on linuxsecurity.com the release of his Linux Network Security book available free online. "In 2005 I wrote a book on Linux security. 8 years later and the publisher has gone out of business. Now that I'm free from restrictions on reproducing material from the book, I have decided to make the entire book available online."

Securing a Linux Web Server - With the significant prevalence of Linux web servers globally, security is often touted as a strength of the platform for such a purpose. However, a Linux based web server is only as secure as its configuration and very often many are quite vulnerable to compromise. While specific configurations vary wildly due to environments or specific use, there are various general steps that can be taken to insure basic security considerations are in place.

  iFrame attack injects code via PNGs (Feb 5)
 

Security vendor Sucuri is warning that it's spotted an attack in the wild that embeds malicious code in PNG files.
  (Feb 4)
 

In today's threatscape, antivirus software provides little piece of mind. In fact, antimalware scanners on the whole are horrifically inaccurate, especially with exploits less than 24 hours old. After all, malicious hackers and malware can change their tactics at will. Swap a few bytes around, and a previously recognized malware program becomes unrecognizable.
  (Feb 4)
 

President Barack Obama in his State of the Union on Tuesday failed to address an issue that affects everyone on the internet -- the NSA's subversion of cryptographic standards and technologies.
  Former NSA employee looks to make email more secure (Feb 3)
 

It wasn't designed with security in mind. It was just designed to work. But following disclosures of large-scale spying by the U.S. as well as other nations over the last several years, a variety of companies, including Wickr and Silent Circle, see commercial opportunities in making encrypted messaging products that are easier to use.
  War on Anonymous: British Spies Attacked Hackers, Snowden Docs Show (Feb 6)
 

A secret British spy unit created to mount cyber attacks on Britain's enemies has waged war on the hacktivists of Anonymous and LulzSec, according to documents taken from the National Security Agency by Edward Snowden and obtained by NBC News.
  Judges Poised to Hand U.S. Spies the Keys to the Internet (Feb 3)
 

How does the NSA get the private crypto keys that allow it to bulk eavesdrop on some email providers and social networking sites? It's one of the mysteries yet unanswered by the Edward Snowden leaks.
  (Feb 3)
 

Zeus is encrypted and contained in an ".enc" file, which security products allow through, according to Malcovery Security
  Snowden leak: GCHQ DDoSed chatrooms of Anonymous, LulzSec (Feb 5)
 

British intelligence ran denial-of-service attacks against chatrooms used by Anonymous and LulzSec, according to an investigation by NBC News involving Snowden confidante Glenn Greenwald.
  Five minutes with Enrique Pel