Leo says that colleges are very good with security, but she could use a VPN service like PrivateTunnel which would give her an encrypted tunnel to secure servers that no one would see. Also, for social media, Facebook now supports "https," (as does Google) so she should go into her settings and enable that.
The chatroom suggests getting a Kensington Lock for the laptop. She should also use for automatic backup. But her best defense is the understanding that everything she does is out in the open unless she's using an encrypted webpage.
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