If you haven’t checked for an update for your Galaxy and Note phones recently, or have been putting off that update, go ahead and do it now.
Some of the holes in security include a Samsung specific IMEI manipulation vulnerability, in which if someone stole your phone and you had it blacklisted, there’s a method for getting around that. Basically it makes your stolen Galaxy more valuable as criminals can resell them.
That along with over 20 vulnerabilities have been patched, which mean about one in five people have bothered to install them as of today putting about 36 million people at risk if I did the maths right.
Basically update. Swipe down, cog, system updates, check for updates, boom.[Forbes]