WorldCom
From Longman Dictionary of Contemporary EnglishWorldComWorld‧Com /ˈwɜːldkɒm $ ˈwɜːrldkɑːm/ a large US telephone company that caused major problems when it pretended that its profits were billions of dollars more than they really were. This was one of the most serious cases of fraud ever in the US, and made many people stop trusting large corporations. After becoming bankrupt in 2002, it changed its name to MCI, which became part of Verizon in 2005.