The Beijing Winter Olympics officially start Friday, although preliminary events have already happened. In addition to the normal concerns about security and logistics, this year’s Games come with tight COVID-19 protocols and, according to cybersecurity experts, additional risks for attacks on the technology people are using. Marketplace’s Kimberly Adams spoke with China correspondent Jennifer Pak about how the government is preparing for security threats. She said contractors hired to manage the threats have identified some particularly high-risk targets.