Most malvertising campaigns (malicious ads) target Windows users, according to statistics shared last week by cyber-security firm Devcon.
The company said that based on data gathered by its internal tools, 61% of the malicious ads they've observed from between July 11 and November 22, 2019 were aimed at Windows users.
This included malicious ad campaigns "designed to redirect the user to malicious sites or to trick the user into downloading a piece of malware."
Most malicious ads tracked back to three ad networks
A different report, also published last week, but by ad security firm Confiant, looked at the entire ecosystem, and the source of these malicious ads.
Confiant said it analyzed more than 120 billion ad impressions published in Q3 2019 (from July 1 to September 30, 2019) via 75 advertising networks (called SSPs, or supply-side platforms).