The document summarizes major software supply chain attacks that occurred between 2020 and 2022. It notes attacks targeting SolarWinds Orion, GitHub repositories, npm packages, Log4j, Kaseya software, Sushiswap, Codecov, and more. Reasons for the rise in attacks are listed as a 650% increase in open source software attacks year-over-year and growing use of containers and open source components. Challenges in addressing these issues are also briefly discussed.