A file-encrypting ransomware program called CryptoWall infected over 600,000 computer systems in the past six months and held 5 billion files hostage, earning its creators more than US$1 million, researchers found.
Police from eight countries together with several private security companies disrupted the online infrastructure used by cybercriminals to control computers infected with a malware program called Shylock.
A hacker exploited publicly known vulnerabilities to install malware on network-attached storage systems manufactured by Synology and used their computing power to generate Dogecoins, a type of cryptocurrency.
A new variant of the Gameover malware that steals online banking credentials comes with a kernel-level rootkit that makes it significantly harder to remove, according to security researchers from Sophos.
A Chinese hacker gang whose malware targeted RSA in 2011 infiltrated more than 100 companies and organizations, and even probed a major teleconference developer to find new ways to spy on corporations.
Several underground marketplaces are offering full information packages for sale that contain verified health insurance credentials, bank account numbers, Social Security numbers and other personal information, along with counterfeit physical documents corresponding to the data.