(Bloomberg) -- The US Securities and Exchange Commission has demanded information from companies about dealings with the Ethereum Foundation as part of a review of aspects of Ether — the world’s second-biggest cryptocurrency, according to people familiar with the matter.Most Read from BloombergTrump Rules Out Vivek Ramaswamy as Running Mate as He Eyes New TeamSam Bankman-Fried Says 50-Year Sentence Only Suitable for a ‘Super Villain’What Happens If Trump Can’t Post His $454 Million BondFed to Gi