We usually call this the causative form of the passive.
You can have or get something done for you.
It is a type of passive, and therefore is constructed as such.
Look at this example.
We don't usually say: The hairdresser cut my hair.
In order to show that we wanted this done for us, we use the causative:
I had my hair cut (by a hairdresser).
I got my hair cut (by a hair dresser).
(Be specially careful to place the object between the verb have/ get and the past participle or you might make a present perfect tense!)
In the same manner, if somebody gets updated, he is probably receiving information (which is a passive state), but has looked for the information in some way, and therefore caused this passive state. In this case we would usually use a causative construction.
Still sometimes we use this form of causative, whether a person has caused it or not.