Why Malwarebytes blocks some Yahoo Mail redirects

Some Malwarebytes users have recently noticed frequent web protection alerts while reading email in Yahoo Mail’s web interface. These alerts are caused by background connections from the Yahoo Mail page to a set of third‑party domains that our products and other security tools currently classify as risky. What we are seeing under the hood When you open Yahoo Mail in a browser, the page loads various embedded components for navigation, features, and metrics.