Alerts This Week
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Alerts This Week
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Linux Network Security - Page 10

Discover Network Security News


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Sony PlayStation Network Down: System Rebuild After Hacker Attack

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The Sony PlayStation network down news for PS3 and Qriocity players is sobering. The network has been down for several days following an "external intrusion" a.k.a. hacker attack. Sadly, the PSN will be down longer while more security is put in place.


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LEET '11: Botnet Operations Insights From Brett Stone-Gross

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A presentation at this week's LEET '11, a USENIX workshop on large-scale exploit and emergent threats, delves into the inner workings of the underground economy, specifically the rental and operation of spam botnets.


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GoDaddy Enhances .Com Security With DNSSEC Implementation

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With more than 47 million domain names under management, GoDaddy has a huge DNS infrastructure that it has upgraded to support the emerging Internet security standard known as DNSSEC for DNS Security Extensions.


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Cisco Report Highlights VoIP Abuse and Financial Risks from Vhishing

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In its recent annual security report, Cisco predicted VOIP abuse as a potential area for cyber crime growth. "Criminals use brute-force techniques to hack private branch exchange (PBX) systems to place fraudulent, long-distance calls; usually international," the report states. "These incidents, often targeting small or midsize businesses, have resulted in significant financial losses for some companies."


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Navigating Cloud Security Obstacles in Hybrid IT Environments Today

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Mixed IT infrastructures, including cloud and non-cloud systems, will be the norm at many companies for many years. Learn about key cloud security concerns and solutions from three early cloud users. For all the talk about public clouds versus private clouds, many organizations will likely end up with a mixed IT environment that includes both types of cloud as well as non-cloud systems and applications


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Fundamentals Of Data And Communication Protection For Corporate Laptops

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In the first article of this two-part series, I looked at physical protection of laptop computers outside the office. Today we'll review fundamentals of protecting data and data communications. This pair of articles is designed to be useful in security-awareness training for employees who take corporate laptop computers out of the office.


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XING Security Advisory: Phishing Risks And XSS Threats Detected

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A new web site, socialnetworksecurity.org, has been set up to publish details of security vulnerabilities in social networks such as Facebook, Lokalisten, Friendscout24.de, wer-kennt-wen.de and XING. Most of the vulnerabilities listed could be exploited for cross-site scripting (XSS) attacks. Jappy.de, for example, contains one such vulnerability which allows contacts' cookies to be stolen.


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Emerging Challenges in Cloud Security Due to Sophisticated Threats

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A second area of focus must be in the way we understand and address threats. The threat landscape has evolved dramatically in the past three years: Starting in 2008 with the growing ability of viruses and malware to evade anti-virus signature technologies; to the pandemic scale of attacks launched by criminals in 2009 for profit; to more sophisticated attacks organised by nation states in 2010.


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Effective Vulnerability Management Strategies for Organizations

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DON'T shortchange remediation. Surprisingly, organizations will perform vulnerability scans, or hire someone to conduct a scan, get a report and then not follow through. They may cherry-pick one or two critical items and neglect the rest. The result is that the organization has spent time and money without doing much for its security.


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Understanding Botnets: Prevention and Detection Strategies for Networks

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Botnets are insidious. They spread like digital weeds and infect thousands to tens of thousands of machines at a time. Their only purpose is to enrich and empower the botnet owners as they infiltrate endpoints on consumer systems, colleges, and enterprises around the world. These botnets are used to send spam, launch denial of service attacks, and


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Akamai Report Q3 2010: Telnet Attacks Rise on Mobile Networks

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A new report from Akamai Technologies shows that hackers appear to be increasingly using the Telnet remote access protocol to attack corporate servers over mobile networks.


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Economic DoS Attacks Emerge As Threat To Cloud Affordability

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The cloud is the current Next Big Thing in computing, and the Next Big Thing in attacks could be a new breed of economic denial-of-service attacks intended to use up resources and drive up the cost of cloud computing, warns a senior security researcher at Adobe Systems.


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Waledac Botnet Launches New Spam Campaigns Targeting Pharmaceuticals

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An old threat has reappeared in the new year, researchers said this week. According to a blog by researchers at Websense, the Waledac botnet appeared in a new version in the last days of 2010, sending out large amounts of new year-related spam messages.


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Wireshark: 1.2.14 & 1.4.3 Critical: DoS Attack Risk from Buffer Overflow

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The Wireshark development team has released version 1.2.14 and 1.4.3 of its open source, cross-platform network protocol analyser. According to the developers, the security updates address a high-risk vulnerability (CVE-2010-4538) that could allow a remote attacker to initiate a denial of service (DoS) attack or possibly execute arbitrary code on a victim's system.


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Disaster Recovery Strategies for Cloud Applications: Trusting Your Provider

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As a information security executive, what are your concerns related to disaster recovery and business continuity of your cloud applications? In Organizing sensitive data in the cloud, I mention configuration information for each cloud service layer (software, platform, infrastructure, and security) needs to be kept in a directory. I have a significant concern though.


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Significant Events in the History of DDoS Attacks within Cyber Warfare

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The concept of Distributed Denial of Service (DDoS) attacks finally entered the mainstream public consciousness this month after assaults on the websites of Visa, MasterCard and PayPal made front page news.


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WikiLeaks DDoS Attack Insights And Government Response to Security Risks

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The British national security adviser, Sir Peter Ricketts, has advised all government departments to review their computer security in light of the recent WikiLeaks attacks.

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