If I use my school wifi, will they be able to read my iMessages?

[Abby]

I know my school's wifi username and password. I know that there's other students who use it as well. I was wondering if they could read my iMessages and if they could see my Facebook account and find out that the device belongs to me?

[Questor]

Of course they can. They can see everything that happens on their network.

[Suraj]

If they want to see your messages then they can do.They can see your every history of net usage a single page also.