Apple has released security updates for Safari, OS X Yosemite (and previous OS X versions), and iOS.
The newest version (v4.5.1) of popular hypervisor Xen has been released last week, and includes a bucketload of improvements and bug-fixes, including nearly 20 security fixes.
Cisco has pushed out security updates to address two vulnerabilities in its Web Security Virtual Appliance (WSAv), Email Security Virtual Appliance (ESAv), and Content Security Management Virtual Appliance (SMAv) software.
Another example of how vendors sometimes choose to improve usability to the detriment of user security has been recently discovered by security researcher and Microsoft MVP Patrick Barker.
Adobe has released an emergency patch for its notoriously buggy Flash Player software because attackers are actively exploiting a critical vulnerability that can lead to total system compromise.
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