In-the-Wild Series: October 2020 0-day discovery https://googleprojectzero.blogspot.com/2021/03/in-wild-series-october-2020-0-day.html
In October 2020, Google Project Zero discovered seven 0-day exploits being actively used in-the-wild. These exploits were delivered via "watering hole" attacks in a handful of websites pointing to two exploit servers that hosted exploit chains for Android, Windows, and iOS devices. These attacks appear to be the next iteration of the campaign discovered in February 2020 and documented in below blog posts:
Part1: Introducing the In-the-Wild Series https://googleprojectzero.blogspot.com/2021/01/introducing-in-wild-series.html