Security response teams at Adobe and FoxIt are investigating ways to mitigate a new PDF hack that allows the execution of an embedded executable without exploiting any security vulnerabilities.

The PDF hack, when combined with clever social engineering techniques, could potentially allow code execution attacks if a user simply opens a rigged PDF file.

Researchers from Symantec are reporting on an ongoing targeted malware campaign using a FIFA World Cup 2010 theme, in an attempt to trick end users into executing a malicious PDF file, exploiting a recently patched flaw in Adobe Reader.

Sourcefire's Matthew Olney examines vendor response to security issues and highlights the value of exploit code as part of defending computer systems.

Malicious hackers have pounced on a newly patched Adobe PDF Reader vulnerability to plant Trojan downloaders on tardy Windows users.

If you're still tardy in applying security patches for the ever-present Adobe Reader software, this chart from F-Secure should jolt you into action.

Over the last two weeks, security researchers have reported eight different zero-day vulnerabilities in Apple's Safari browser.

The vulnerability, discovered by Aviv Raff, could potentially allow an attacker to download and install unauthorized software onto a user's system.

Adobe's habit of downplaying the severity of security vulnerabilities is dangerous and should be discontinued immediately.

The vulnerabilities are rated "critical" and affect Adobe Reader and Adobe Acrobat on all platforms -- Windows, Mac and Linux.