Last week, a Russian security firm discovered that over 17,000 Mac computers had been infected with a malicious software called iWorm that connected infected devices to a botnet by using Reddit to unearth links to command servers. This weekend, both Apple and Reddit took measures that rendered the software ineffective.
Apple updated its Xprotect software to add the iWorm to its list of blocked programs.
Meanwhile, Reddit banned the fake Minecraft subreddit that the hackers were using to connect the infected computers to the botnet.
It appears this botnet was defanged before the hackers could use it for anything nefarious, but it's disturbing that its creators hooked into so many computers before it got shut down. [Business Insider]