Because of the nature of electronic data, it is sometimes difficult to ascertain whether the data have been altered or manipulated unless the signature is linked to the data in such a way that the signature verification process can detect data changes.
The data is electronic.
It is easy to find out if data have been altered.
People are getting slushies.
Two girls are working on a science project.
They are an especially engaging group of people.
No shops are open in the evening.
A kid sleeping.
Two girls sitting.