It said in a blog post Friday that most of the attacks in recent months were unsuccessful, but provided no information on how many succeeded or how serious those breaches were.
Chinese state-backed hackers have also been targeting vaccine-makers, the U.S. government said in July while announcing criminal charges.
Microsoft said most of the targets — located in Canada, France, India, South Korea and the United States — were “directly involved in researching vaccines and treatments for COVID-19.” It did not name the targets but said most had vaccine candidates in various stages of clinical trials.
