If you might have heard, on August 1st, 2017 bitcoin will split into two. The new bitcoin will be called 148 BTC and the original will be called Legacy BTC. Why? Because bitcoins new blockchains "holds too much" and is in need for an upgrade. The new blockchain will required miners to get ready for 148 BTC and if they don't t will cause a crash and you might lose your funds when it splits. To be prepared you will need to use a hardware wallet, a paper wallet, or a wallet that supports the new and old BTC. Good Luck!
Video to find out more.