Apple and Adobe have released updates to address security vulnerabilities in their widely used products. You should apply these updates as soon as possible to minimise risk to your computers, devices and information.
Apple has released a security update for GarageBand, applicable for OSX Yosemite v10.10 and later.
Adobe has released Security Bulletins regarding Flash Player updates for Windows, Macintosh, Linux and Chrome OS; Digital Editions updates for Windows, Macintosh and Android; and Campaign v6.11 updates for Windows and Linux.
You are advised to review security bulletins and advisories from any vendor you use and apply their updates as soon as possible. Many vendors allow you to automate the process of updating their software.
Security updates address vulnerabilities in computer systems that attackers can otherwise use to gain access to systems or information.
A vulnerability is a weakness that can leave a computer and its systems open to attack. Attacks can be carried out a number of ways, including through malicious software (malware) such as viruses and spyware that can monitor a users' activity on a computer and stop systems operating properly.