Now a day, everyone uses a smartphone and one specification we wouldn’t compromise is camera pixels and image quality. Since the implementation of selfies we can say that use of cameras has reduced considerably.
The core meaning of Metadata is data describing other data. In technology specific usages, the prefix Meta usually means a definition or underlying information regarding data. The usage of Metadata makes it easier to find certain core data instances, and also makes it easier to work with them.
US Federal Government has released a list of more than 60 federal, state and local government agencies that have applied to access metadata. It is released under the Freedom of Information laws. It confirmed that many agencies have sought to access telecommunications data without a warrant in USA.