You may know that a Bitcoin Segwit Activation may be happening on August 1, 2017. Bitcoin may be split into two coins. That's great for every Bitcoin holders but not every Bitcoin exchange or wallet will be supporting this upgrade. If your Bitcoin exchange or wallet is not supporting the upgrade, there may be errors in transactions. You may think you are sending one coin when the Segwit occurs but you may be sending both.
If you have Bitcoins on an exchange or in a wallet that does not support the segwit, thus you also do not hold the 'private' keys, you may lose your bitcoins during this upgrade.
I am not a financial advisor so please do your own research.
Watch the Boxmining interview to find out about this user activated soft fork BIP148 in order to protect your Bitcoin
Recommended NOT to do any transactions on August 1, 2017 to ensure Your Bitcoins are safe.
