An email headed “ADOBE PDF READER SOFTWARE UPGRADE NOTIFICATION” has been spammed out recently: of course, it’s a fake, linking to a site that isn’t Adobe’s.

Adobe's Product Security Incident Response Team (PSIRT) reports  that malicious emails are circulating claiming to be Adobe security updates, many of them signed by "James Kitchin" of "Adobe Risk Management", or a similar (presumably mythical) team. Adobe says that the messages include links to download instructions for a security update that addresses "CVE-2010-0193 Denial of Service