Stories by Lucian Constantin

Hackers are exploiting a vulnerability in the popular vBulletin Internet forum software in order to inject rogue administrator accounts into websites using it.

Cisco Systems has released security patches for authentication bypass, command execution and denial-of-service vulnerabilities affecting products that use its Adaptive Security Appliance (ASA) software, as well as the Cisco Catalyst 6500 series switches and Cisco 7600 series routers.

The popular mobile messaging application WhatsApp Messenger has a major design flaw in its cryptographic implementation that could allow attackers to decrypt intercepted messages, according to a Dutch developer.

Four men have been arrested by the U.K.'s National Crime Agency (NCA) for drug offenses in connection with their involvement in Silk Road, an Internet underground marketplace for drugs and other illegal items.

Russian authorities have arrested the main developer of the notorious Blackhole exploit kit, one of the most popular attack tools used to infect Web users with malware.

Hosting provider LeaseWeb became the latest high-profile company to have its domain name taken over by attackers, highlighting that DNS (Domain Name System) hijacking is a significant threat, even to technically adept businesses.

The developers of WHMCS, a popular client management, billing and support application for Web hosting providers, released emergency security updates Thursday to patch a critical vulnerability that was publicly disclosed.

Hackers broke into the internal computer network of Adobe Systems and stole information on 2.9 million customers, as well as source code for several of the company's products.

A vulnerability found recently in an OpenID-based feature of the Mozilla Persona online identity management service prompted the company to advise Web developers to check their OpenID implementations for similar issues.

The U.S. National Security Agency's reported efforts to weaken encryption standards have prompted an encrypted communications company to move away from cryptographic algorithms sanctioned by the U.S. National Institute of Standards and Technology (NIST).

An exploit for a vulnerability that affects all versions of Internet Explorer and has yet to be patched by Microsoft has been integrated into the open-source Metasploit penetration testing tool, a move that might spur an increasing number of attacks targeting the flaw.

The cybercriminals behind ZeroAccess, one of the largest botnets in existence, have lost access to more than a quarter of the infected machines they controlled because of an operation executed by security researchers from Symantec.

A piece of malware designed to launch brute-force password guessing attacks against websites built with popular content management systems like WordPress and Joomla has started being used to also attack email and FTP servers.

A recently announced and yet-to-be-patched vulnerability that affects all versions of Microsoft Internet Explorer (IE) has been exploited in targeted attacks against organizations in Taiwan since the beginning of July, according to security researchers.

Cisco Systems has patched 10 vulnerabilities that could impact the availability of devices using various versions of its IOS software.