Stories by Tim Greene

For the second day in a row, blog-hosting giant WordPress.com suffered a distributed denial-of-service attack that it was able to cut off quickly. The motive remains a matter of speculation.

Distributed denial of service (DDoS) attacks like the ones that nailed WordPress blogs in early March have been around for decades, but it's only in the last dozen years that they've had enough impact to grab public attention.

Palo Alto Networks is coming out with software that extends its next-generation firewall protection to individual laptops no matter where they are when they tap into business networks.

Extreme Networks is going mobile. The company today wheeled out a roadmap that will steer the company's product line toward mobile device and application access, availability and management support.

Stung by a high-profile denial-of-service attack in December, PayPal's CISO says application layer attacks remain a major threat to businesses in general, which need better defenses and actual testing of the DDoS tools they have.

The hactivist group Anonymous has won for now its skirmish with the CEO of HBGary Federal, the network security firm whose e-mails were stolen and posted on the Internet, leaving the company red-faced over the content as well as the ease with which its network was hacked.

Juniper Networks today announced the results of $100 million in research and development: a new architecturefor data center infrastructure called QFabric

A Princeton University student who discovered the school's LDAP server exposed private student information to the public has shut down access to that information on his Web site after the school tightened security.

The hactivist group Anonymous used a series of simple technical and social exploits to crack the network of technology firm HBGary Federal, giving the company a schooling that other network security pros can learn from.

Stanford University researchers have found a way to double the capacity of wireless networks, while at the same time making them more reliable and efficient.

E-mails stolen by hactivist group Anonymous indicate that the security company it targeted was proposing to make a “new breed of rootkit” and that it passed along the plan to a technology firm that caters to the federal government.

SenSage, which makes security information and event management (SIEM) products, is opening up its platform to share data it gathers with business intelligence tools so they can be used to make better decisions.

CipherCloud, a startup launching this week at the RSA Conference, protects sensitive data being transferred on the Web without breaking the applications using the data.

Android Market's instant-download feature for applications that customers buy has a flaw: It could open up Android devices to malicious downloads from attackers, according to security firm Sophos.

Check Point is introducing four applications for its a la carte security platform that allows customers to create tailored security appliances on off-the-shelf hardware.