After the reported exchange rate offered on fiat/Bitcoin spiked last month, they have spiked again this past week hitting approximately 450 United States dollars per Bitcoin. Following last months spike prices have settled in to a band between 300 and 400 United States dollars before climbing again to this latest apex. Earlier in 2015 Bitcoin as reported by fiat/Bitcoin interfaces had been holding in a boring and steady band between 200 and 300 United States dollars for nearly the entire year. Increased buying pressure is leading some exchanges to criminally reckless coping mechanisms as their thin order book sell sides are exposed. Continued caution in dealing with all fiat/Bitcoin interfaces is advised as noise about particular exchanges being "Big" is no reliable indicator of their safety.