What Are Com.sec.android.provider.* Apps Exactly?

I know it's not a code question. However, i try to work on some databases that stored in directories like /data/data/com.sec.android.provider.*. What does it mean by 'sec' in the p

Solution 1:

However, i try to work on some databases that stored in directories like /data/data/com.sec.android.provider.*.

Those are not part of the Android SDK.

What does it mean by "sec" in the provider signature?

Samsung Electronics Corporation is my guess.