Dennis Fisher

About

Dennis Fisher is a journalist with more than 13 years of experience covering information security.

OpenVPN Warns Customers of CSRF Bug in Access Server Desktop Client

OpenVPN is advising users of its Desktop Client to upgrade as soon as possible to avoid attacks against a CSRF vulnerability that can allow remote code execution. The vulnerability lies in a product that the company no longer supports and considers obsolete. An attacker could exploit the vulnerability if a user running a vulnerable version visits […]

Large-Scale DDoS Attacks Continue to Spike

Although the average size of a given DDoS attack is going down, the number of attacks at the upper end of the scale is increasing, with researchers at Arbor Networks reporting more than 100 attacks of 100 Gbps in the first half of this year. In order for a DDoS attack to be effective, bad […]


LastPass, the popular password manager for most of the top Web browsers, has fixed a couple of vulnerabilities that could have allowed an attacker to target users and generate his own one-time passwords for the victim’s account. The company said that its security team hasn’t seen any active attacks exploiting these vulnerabilities and doesn’t think that […]

It’s only been a little more than a month since the FBI and Europol took down the GameOver Zeus botnet, taking control of its command-and-control infrastructure and effectively cutting off the malware’s head. But researchers say that there are some indications that a new strain of the malware may already be active again. GameOver Zeus […]

The source code for Tinba, known as the smallest banker Trojan in circulation, has been posted on an underground forum. Researchers say that the files turned out to be the source code for version one of Tinba, which was identified in 2012, and is the original, privately sold version of the crimeware kit. Tinba performs many […]

The Indian Controller of Certifying Authorities said that the certificate-issuance process for the National Informatics Centre of India, which issued several fraudulent certificates recently, which were blocked by Google, has been compromised and Google has decided to constrain India CCA’s root certificate to a handful of domains in a future Chrome release. Google’s security team […]

It’s been a weird couple of weeks for Microsoft. On June 30 the company announced its latest malware takedown operation, which included a civil law suit against Vitalwerks, a small Nevada hosting provider, and the seizure of nearly two dozen domains the company owned. Now, 10 days later, Microsoft has not only returned all of the seized […]