Three arrests are made following this month’s celebrity Twitter hack, Microsoft may be working to acquire TikTok’s U.S. business and Facebook launches licensed music videos. Here’s your Daily Crunch for July 31, 2020. The big story: Florida teen arrested in Twitter hack In a hack earlier this month, high-profile Twitter accounts like Apple, Elon Musk, Barack Obama and Joe Biden were compromised and posted messages promoting a cryptocurrency scheme. Now an investigation by the FBI and Department of Justice has resulted in three arrests: Mason Sheppard of the United Kingdom,…