Microsoft has found that various browsers are being targeted with ad-injection malware called Adrozek. At the attack’s peak in August, the malware was observed on more than 30,000 devices every day, according to the researchers. The adware, as it is called, substitutes phony search results that when clicked will infect your computer.

You can read my analysis of the malware and what you can to prevent it in my latest blog post for Avast here.