Android Oreo brings a built-in secure AutoFill API that allows users-chosen password manager to store different types of sensitive data, such as passwords, credit card numbers, phone numbers, and addresses. New Emoji and Downloadable Fonts are among the features in the latest version of Android 8.0 Oreo. Not all applications installed from third-party sources are malicious, but most of the apps installed from outside of the official Play Store could land you in trouble. New anti-malware tool called Play Protect helps in detecting and removing harmful applications with malicious applications.
Source: https://thehackernews.com/2017/08/android-8-oreo.html