Apple security isn’t as good as you might think.
Apple Devices are often falsely believed to be impervious to intrusions and viruses. As seen in the article below Apple laptops are just as vulnerable as any other brand of laptop.
Whilst this particular glitch was to do with possible intercepts of private data over wireless networks, it reinforces the fact that all devices benefit in the use of security software. Sophos offers a free anti-virus for mac (http://www.sophos.com/en-us/products/free-tools/sophos-antivirus-for-mac-home-edition.aspx). AVG also has a free anti virus for apple devices (https://www.avg.com.au/products/avg-for-smartphones/)
Reuters’ article about Apple Security.