U.S. grocery giant Kroger has opened an investigation after issuing a fake press release claiming it will start accepting Bitcoin Cash as a payment method. News that the supermarket chain would adopt the world's number 21 cryptocurrency quickly spread like wildfire - indicating that lessons have not been learned after a similar hoax that targeted Walmart in mid-September. . In the case of Kroger, the false announcement was made on PRNewswire. To compound the problem, it was then automatically retrieved from the company's investor relations page ... prompting a number of media outlets to follow suit. Bitcoin Cash saw a sudden spike of 3.35 after the news broke, dropping from $ 602.99 to $ 623.22 in 20 minutes. But the altcoin collapsed on Earth after Kroger said:“This communication was fraudulent and unfounded and should be ignored.