A total of 66 flaws in its Safari, iTunes, macOS, and iOS product lines were addressed by Apple.
A majority of the fixes were discovered during the popular Pwn2Own hacking contest at CanSecWest, according to a report by Threatpost.
Many of the patched vulnerabilities led to memory corruption in WebKit, a web browser engine used by Safari, App Store, and many other OS X, iOS, and watchOS applications.
Seven of the WebKit flaws and 13 Safari vulnerabilities were discovered by former Pwn2Own hacker Lokihardt, who is now part of Google's Project Zero. German hackers Samuel Broß and Niklas Baumstark found five bugs – one in WebKit, another in DisArbitration, and three vulnerabilities in the OS's Speech Framework and Security features.
Contestants of the annual hacking contest earned a total of $143,000 for helping discover the flaws in the Apple products.