Hi Guys,
What caused the 2011 Bitcoin crash from $17 to pennies on that Sunday afternoon?
Also, what steps are being taken to try to prevent it from happening again?
thanks for reading
As I understand it, the exchange rate never actually went down to pennies. This is widely mis-reported.
As for what caused the crash...
At the time, there weren't many wallets for storing/receiving/spending bitcoins and there weren't many places available for exchanging them.
The few services that were out there were relatively new and not as security conscious as they should have been. MtGox got hacked, one of the online wallets ran off with the bitcoins of everyone that was using them, and another may have gotten hacked. This caused many people to loose faith in the security of bitcoin (even though nothing in the bitcoin protocol was hacked). The fear and false reporting of "bitcoin hacked" scared a lot of people who all quickly sold off what they had. Lots of people willing to sell at whatever price they could get, and those who were willing to buy were able to offer low prices and scoop up some great deals on bitcoins.