How did a fake Walmart press release about litecoin get on GlobeNewswire?

From fastcompany.com

Was this the PR hoax of the decade? Reporters and crypto traders are both a little red-faced today after running with the supposed news that Walmart would begin accepting litecoin as a new form of payment. The source seemed legit: An announcement posted on GlobeNewswire, a service for press release distribution. It spawned immediate stories in major outlets like CNBC, Reuters, and even the digital currency news site Coindesk, which took the announcement at face value. Litecoin’s own verified account then retweeted the report. What was up? How did that happen? The news release arguably had a few tells if you looked ... (full story)