This attack hit at least 18,000 victims across around 120 countries, including government offices and email providers.
Microsoft found more than 200 organizations and 5,000 personal devices were compromised (even three government agencies in Africa weren't spared).
Thankfully, a team including the FBI and Lumen Technologies has stepped in to shut down some of Fancy Bear's tools.
The big takeaway? It's a good reminder to update your router's software as soon as possible.