Serious security flaw threatens Minecraft and possibly the entire internet — what to do

If you’re a Minecraft player using the Java Edition on a PC, Mac or Linux box, you’ll want to update your game software to the latest version immediately. 

There’s a very serious security flaw that could let malicious hackers totally take over your computer. The issue could also affect many other online services, including possibly Steam and Apple iCloud, but we don’t yet know exactly how severe the threat to those other platforms is.