The Straits Times SolarWinds, Microsoft, FireEye, CrowdStrike defend actions in major hack: US Senate hearing All four were victims in one of the worst hacks yet discovered, affecting about 100 US companies and nine federal agencies.PHOTO: AFP PublishedFeb 24, 2021, 7:10 am SGT https://str.sg/JHt7 They can read the article in full after signing up for a free account. Share link: Or share via: Sign up or log in to read this article in full Sign up All done! This article is now fully available for you Read now Get unlimited access to all stories at $0.99/month for the first 3 months.