Spectre and Meltdown issues
At the beginning of year 2018 two security issues called Spectre and Meltdown have been found on modern CPUs, forcing hardware vendors and operating systems developers to release software updates and fixes. According to ARM and Google research, ARM™ Cortex-A53 based solutions like Mediatek MT6752 and MT6735, used by Commodore smartphones, are not affected by the issues.
More about Meltdown and Spectre on meltdownattack.com
List of impacted ARM architectures on developer.arm.com