https://www.cnbc.com/2018/01/05/own-a-mac-pc-or-smartphone-a-major-security-flaw-means-you-need-to-do-this-now.html

SAN FRANCISCO — Apple says all of its Macs, iPhones and iPads contain a security flaw that requires an update. It's not alone. Any owner of a PC, tablet or smart phone should make sure that automatic software updates for their operating systems are enabled after security researchers this week revealed a broad flaw in Intel and other chips that could allow hackers to access data previously thought to be secure.

What you should do about it?