Google's possible withdrawal from China because of hacker attacks has been big news, and now reports suggest that Adobe was targeted by the same attackers. The takeaway lesson? Plug those holes in your PDF security arrangements pronto.
Computerworld reports that Adobe has confirmed that it was subject to attacks around the same time as Google, while other researchers are suggesting that the vulnerabilities exploited by the hackers may have involved using carefully-constructed PDF files.
While the reality is likely to be more complex, the incident serves as a reminder that PDF files are a prime source of security problems. One straightforward way to minimise those issues is to switch from the bloated Adobe Reader and use an alternative PDF reader; our Hive Five is a good place to start hunting.