Much of “Google Play Protect” — announced back at I/O in May — is just a public-facing rebrand of security features that have long been part of Android. We saw of the beginning of its rollout when Verify Apps was rebranded with the Protect branding last month, and now the Play Store side of things is showing for some users.
Before the unified Play branding, Google had the Android Market, Google Music, and Google eBookstore. Google decided to merge and rebrand its individual digital offerings into the Play Store in March of 2012.
The Play Store is now the default place to purchase apps, movies & television, music, books, and news subscriptions for all Android devices. The latter four offerings having their individual Android and iOS apps to watch, listen, and read purchased content. Most content can also be accessed through the web.
In April of 2016, the suite of icons were redesigned in a similar style to provide a consistent look across all devices and the web.