Take a look at OUCH!, a monthly security awareness newsletter from SANS:
www.securingthehuman.org/resources/newsletters/ouch
The January issue of OUCH! explains what Java is, dangers of using Java, how to disable it, & how to keep it updated.
http://www.securingthehuman.org/newsletters/ouch/issues/OUCH-201301_en.pdf
Other cyber security awareness resources are available from the SANS Securing The Human Program, so take a look and let us know if you find anything particularly useful.
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https://www.ithaca.edu/intercom/article.php/20130110155105486