"Meltdown" and "Spectre"
Multiple research teams at academic and cybersecurity organizations (and even Google) have uncovered 2 flaws relating to computer chips that affect nearly every modern computer. The flaws stem from exploitations of a technique used by central processing units (CPU's) manufactured by Intel, AMR and AMD. The flaws have been dubbed "Meltdown" and "Spectre", and both create vulnerabilities that hackers can take advantage of. Microsoft, Apple and Linux are all issuing updates, though it is unclear when these will be available. Google has released a statement that Android users with the most recent security updates are protected, as well as users of most other Google applications. Many other applications, including Amazon Web Services and Microsoft Azure, are mobilizing to develop patches and protect their customers. Be sure to check to see if any applications you extensively use were affected. All SIM2K Cylance subscribers are protected from Meltdown and Spectre.
For more information about the discovery, and ways you can protect yourself, check out the following sources:
Google's security blog
Amazon Web Services