Always try to keep up on the news, news can make or break your profits..     Well consider that Cryptocurrency is still relatively new, heck it isn't even mainstream yet. So there will of course be periods of change. News heavily influences how the market perceives things and with the Ethereum incident a few days ago it makes sense that people would consider selling off and lowering the market values. These occasional crashes and market dips are risks that cannot be avoided, however they can be mitigated by these actions.