Fake press release dupes media outlets into reporting that Walmart will begin accepting Litecoin

A graph of the value of Litecoin, showing a brief but large spike in its valueSpike in Litecoin value attributed to the fake press release (attribution)
A press release distributed via GlobeNewswire claimed Walmart was announcing a partnership with Litecoin to begin accepting the cryptocurrency as a payment method. The value of Litecoin spiked before tumbling after Walmart said the announcement was fake.