By Johannes Ullrich Apple Releases Security Updates
http://support.apple.com/kb/ht1222
Yosemite Privacy Impact
https://github.com/fix-macosx/yosemite-phone-home/
PoS Malware Uses DNS For Data Exfiltration (link in german)
https://blog.gdata.de/artikel/neue-variante-von-frameworkpos-schoepft-daten-ueber-dns-anfragen-ab/ More Here