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:

What You Need to Know About Linux Rootkits - Rootkits are a way attackers hide their tracks and keep access to the machines they control. The good rootkits are very hard to detect and remove. They can be running on ones computer and no one can even know they have been running. Read more to learn how to detect them on your system.

Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition - Mark Sobell again delivers the answers to common Linux administration challenges, and provides thorough and step-by-step instructions to configuring many of the common Linux Internet services in A Practical Guide to Fedora and Red Hat Enterprise Linux, Fifth Edition.

Hacker group vows to 'kill Facebook' (Aug 9)

Apparently, "Anonymous" won't be accepting your friend request. Members of the shadowy collective known for its politically motivated Web hacks and attacks are targeting Facebook for what they claim to be the social-networking giant's misuse of personal information.
Linux Distros: When It Absolutely, Positively Has to Be Secure (Aug 12)

Security minded Linux users have options if they want to lock their systems down extra-tight. They can jump to a close Linux relative like OpenBSD. If they know what they're doing, they can set ultra-secure configuration options. Or they can choose from a few freely available Linux distros that make security a top
(Aug 9)

A 10-year-old girl has uncovered a security flaw in popular Android and iOS games after becoming "bored" at their slow pace. The young hacker, whose real name has not been disclosed, presented her findings at the Defcon conference in Las Vegas as part of a competition to find the next generation of computer security experts.
New hack on CitiGroup shows security 'experts' preaching reason should just cut it out (Aug 9)

A division of CitiGroup in Japan announced hackers had stolen personal information on more than 92,000 customers, according to a story in Japan Times.
(Aug 10)

Now patching a 20 year old vulnerability? Microsoft today issued 13 security updates that patched 22 vulnerabilities in Internet Explorer, Windows, Office and other software, including one that harked back two decades to something dubbed "Ping of Death."
Mobile phone eavesdropping made easy: Hackers crack GPRS encryption (Aug 11)

After outer space was proclaimed as hackers' newest target, thunderous applause followed at the opening of Chaos Communication Camp 2011 in Finowfurt, Germany. In the next ten years, hackers want to have their own communication satellites in orbit, reported Heise Online. Nick Farr (@hackersonaplane) of Hackers on a Plane said, "We can conquer the entire galaxy, if we stop for five minutes, to behave like idiots."
Antisec hacker checks in at Defcon (Aug 8)

THE APPARENT LEADER of the Lulzsec hackers has been tweeting from the Defcon security conference and goading law enforcement officers in attendance.
(Aug 10)

A turf war is developing between rootkit-touting cybercrooks over control of infected PCs. Rootkits are strains of malware designed to hide below the level of anti-virus scanners and programmed to carry out functions such as click fraud.
(Aug 10)

The Chrome 13.0.782.107 update, released via the browser's silent automatic update mechanism, fixes a total of 30 vulnerablities, some serious enough to allow drive-by download attacks.
Apple security under attack: The view from Windows (Aug 11)

The blogosphere is abuzz over the latest Black Hat presentation exposing the security holes of Apple's Mac OS X. The upshot is that Microsoft Windows, in comparison, does a better job of protecting its users, especially against network protocol attacks.
Encrypt Early, Encrypt Often (Aug 12)

A theme that appears anytime the cloud is discussed in the context of IT is security. The general direction of this concern is the prevention of unauthorized access to cloud-hosted data and apps. If the topic is pursued, rather than just acknowledged as an issue, it generally forks into two main threads: preventing access by outside parties (hackers, crackers, protesters, and the like) and preventing access by inside parties, such as unauthorized employees.
Free web service cracks internet kiosks (Aug 11)

At the Defcon hacker conference, which ended on Sunday, New Zealand security specialist Paul Craig released version 5 of iKAT (Interactive Kiosk Attack Tool). iKAT is a free web service that tries to bypass the protective mechanisms of internet kiosk PCs and gain control of the systems.