An attack on critical vulnerabilities in Shockwave Player versions prior to 11.5.1.601 could "run malicious code on an affected system," Adobe says. Check your Shockwave version at , and get the latest iteration () from our Downloads pages.
Finally, the Mac OS X 10.6.2 update corrects various problems involving PDF files, H.264 movies, TIFF images, and other things. Get it via Software Update, and read more at .