Twitter's Strategy to Counter Spam, Cyberattacks

Oct. 4 (Bloomberg) -- Mark Risher, co-founder of Impermium and former spam czar at Yahoo, discusses Twitter's security concerns with Cory Johnson on Bloomberg Television's "Bloomberg West." (Source: Bloomberg)
Germany, U.S. Losing Patience With VW: Siebert
38:18 - Jochen Siebert, managing director at JSC Automotive, discusses the Volkswagen emissions scandal, the company's top U.S. executive testifying in Washington and how deep the investigation could go. He speaks to Bloomberg's Angie Lau on "First Up." (Source: Bloomberg)
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