Ransomware attacks have proved incredibly profitable for cybercriminals, but some are testing out more subtle ways to generate income. One way they’re doing that is by sneaking cryptocurrency miners onto popular websites.

According to a recent report from AdGuard, more than 200 of the top 100,000 sites on the web were hosting suspicious code. That may not seem like a big deal, but even sites near the bottom of that list draw a huge amount of traffic. The most popular one on AdGuard’s list regularly pulls in around 60 million visits every month.

Read full news article on Forbes.com