Summary: Two major cybersecurity intrusions, each with global implications, are in the news. On Wednesday, hackers accessed high-profile Twitter accounts, using them to promote the cryptocurrency Bitcoin. Also, three countries accused Russia of trying to steal research into a possible COVID-19 vaccine. William Brangham talks to the Wilson Center's Nina Jankowicz and cybersecurity expert Dmitri Alperovitch. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
