The Australian firm Azimuth Security was responsible for hiring a researcher who succeeded in gaining access to an iPhone 5C used by a terrorist in the US in 2015. The incident led to a well-documented stoush between Apple and the FBI in 2016.
A researcher from Google's Project Zero security team has written a detailed account of how he discovered a a memory corruption bug in the kernel of Apple's iOS operating system and then figured out numerous ways of using this flaw to attack other iPhones.
US-based defence contractor L3 Intelligence has acquired two Australian information security firms, Azimuth Security and Linchpin Labs, for a total sum of $313 million.