A significant increase this weekend in TCP traffic with source port zero detected could be part of reconnaissance efforts in preparation for more serious attacks, according to security researchers from Cisco Systems.
Users who removed the original malware infection, intentionally or not, are asked to pay five times more to recover their files.
A new variant of a Trojan program that targets online banking accounts also contains code to search if infected computers have SAP client applications installed, suggesting that attackers might target SAP systems in the future.
Don't call it hacking, a senior cybercrime adviser for the Dutch National High Tech Crime Unit said at a security conference -- it's "lawful intrusion."
Penetration testers used a faked woman's identity on social networks to break into a government agency with strong cybersecurity defenses.
Security firm Rapid7 recently found and reported vulnerabilities in seven popular open-source software applications that together have been downloaded millions of times.
Attackers compromised two php.net servers, injecting malicious code into the website, so The PHP Group is resetting passwords for the official website of the PHP programming language. It's also changing php.net's SSL certificate.
Software security updates from Cisco address denial-of-service and arbitrary command execution vulnerabilities in several products.
The Flash Player plug-in has more restrictions, which should mean improved security under Safari on Mac OS X Mavericks.
Vulnerabilities in the management interfaces of some wireless router and network-attached storage products from Netgear expose the devices to remote attacks that could result in their complete compromise, researchers warn.
Attackers are using real browsers on infected computers to attack Web applications and bypass DDoS protection.
The Mexican government has condemned newly reported spying activities of the U.S. National Security Agency against the country's former president while he was in office.
Belgian telecommunications group Belgacom found unauthorized changes made to a router at its BICS subsidiary, which provides wholesale communication services to hundreds of operators worldwide.
Hackers managed to steal a database containing customer credentials and contact information from PR Newswire, a major press release distribution service that's used by tens of thousands of companies and public relations agencies.