SecurityLab shared their analysis of smartphone manufacturers' security updates, focusing on four specific questions:

• The shortest time to publish a security update following discovery of a vulnerability
• The maximum delay in making the update available to all
• Whether or not updates were independent of carriers
• How long a device is supported with security updates

The top-rated brand was Apple, scoring green in all categories. Of Android brands, just two scored reasonably highly.

Apple's had an embarrassing rough patch of bad software bugs in the past few months, but they're the fastest in the industry at patching it up.