network security - News, Features, and Slideshows

network security in pictures

News about network security
  • A true story of combating a large-scale DDoS attack

    Real tales of cyberattack response and recovery are hard to come by because organizations are reluctant to share details for a host of legitimate reasons, not the least of which is the potential for negative financial fallout. However, if we never tell our stories we doom others to blindly walk our path. Better to share our real-world battlefield experiences and become contributors to improved threat intelligence.

  • A new kind of DDoS threat: The "Nonsense Name" attack

    There's a new species of Distributed Denial of Service (DDoS) attack targeting name servers, which could be called the "nonsense name" attack. It can wreak havoc on recursive and authoritative name servers alike, and some of our customers at Infoblox have fallen victim to it--but it's not always clear whether they were actually the targets.

Tutorials about network security
  • Breach detection: Five fatal flaws and how to avoid them

    IT Security today is not about defending a (non-existent) perimeter, but about protecting the organization's attack surface, which has changed dramatically due to the cloud, mobility, BYOD, and other advances in corporate computing that have caused fundamental shifts in network architecture and operations.

  • How to protect yourself against privileged user abuse

    The typical organization loses 5% of its revenues to fraud by its own employees each year, with most thefts committed by trusted employees in executive management, operations, accounting, sales, customer service or purchasing, according to the Association of Certified Fraud Examiners (ACFE). This type of malicious behavior by "privileged users" who have been given broad access to the company's computer assets has captured the attention of CIOs across the country.

  • Record patch Tuesday: What you need to know

    Today is the final Microsoft Patch Tuesday for 2010. It has been a busy year for Microsoft when it comes to security bulletins, and December is no exception as Microsoft closes out the year with a record 17 security bulletins. With only a week or so until many IT admins plan to kiss 2010 goodbye and break for the holidays, it is important to understand and prioritize the latest patches for quick implementation.

Features about network security
  • Network analysis is like turning over rocks

    I just found out my company's employees have been finding ways to get around my Web filtering. And that came as a surprise, because I use a best-in-class product that employs a database to categorize and block website URLs, which I thought I could rely on. But as I found out, that product is not perfect.

  • The best way to stop DDoS attacks

    <em>This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter's approach.</em>

  • Information overload, SIEM version

    It's been over a year since <a href="http://www.computerworld.com/article/2486501/security0/security-manager-s-journal--giving-thanks-for-siem.html">I last wrote about my security information and event management (SIEM) platform</a> -- and a lot has happened since then. Back then, I wrote, "Now that my SIEM has been in operation for several months, I've become completely dependent on it, not only for security monitoring, but also for overall awareness of my network."

  • Lessons from the Sony breach in risk management and business resiliency

    2014 made it clear that cybercrime affects everyone. From retailers to banks, consumer goods companies and health care, there isn't an industry left untouched by cybercriminals looking to disrupt, steal or embarrass. So what has to change? The recent Sony attack and countless other examples point to the need for board members and executives to consider cybersecurity under the concept of risk management and business resilience.

Whitepapers about network security

Market Place

[]