Apple has released a large security patch, fixing 20 flaws in its OS X operating system.
Security Update 2005-005 is available for download from the Apple security page and many users will have downloaded it automatically yesterday.
The patch fixes vulnerabilities in Apache, AppleScript, Bluetooth and the Finder tool, along with the Terminal command line application and the Netinfo set-up tool.
The Bluetooth patch stops devices linking to other computers and sharing information without the user knowing. The patch also protects against buffer overflow problems that could crash unpatched systems.
Danish security analyst Secunia has rated the patch 'highly critical' and urges users to install it as soon as possible.
IBM and Technical University of Munich team demonstrate how Shor's algorithm, which can't be cracked by conventional computers, can be solved quickly with quantum computing
Hubble Space Telescope finds superflares from young red dwarfs could strip away planetary atmosphere
Younger stars are 100 to 1,000 times more energetic than when they're older
Two of the big four supermarkets will use the system to control sales of restricted products
PUBG news and updates: November's Update #23 to bring new Skorpion pistol and changes to blue zone visibility
Genuinely useful side-arm coming to PUBG in Update #23