can datasnap be hacked?

[basilis]

hi all,

im using datasnap technology to create client server applications.i usually
have a database which is connected to a
server application and then a client application that connects to the
server.the client uses sql queries that are passed to the
server and then to the database and backwards.

1)i would like to ask if datasnap technology has any known limitations.
2)can datasnap be hacked?
3)what actions should i take to prevent any non authorized access?
4)is datasnap used in large scale network applications from large it
companies?>

thank you very much