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We have news of two new tricks hackers are currently using to steal WoW accounts. First, from Curse, comes news of a Google sponsored link that claims to lead to the popular addon manager Curse Client, but instead leads to a malware download. To be absolutely safe, you should always only download the client from http://www.curse.com/client.
In addition, Blizzard is warning that Adobe Flash version 10.0.45.2 contains a critical vulnerability that could be used to install a keylogger on your computer in order to steal your WoW account info. You can avoid this issue by installing Adobe Flash version 10.1 Release Candidate 7, which does not appear to have the same vulnerabilities.