It's recently been disclosed that if you use the in-flight Internet service provider GoGo, they are using a Man-in-the-Middle attack to throttle the bandwidth of high bandwidth internet pages.
While I can appreciate the need to limit bandwidth, from a security standpoint this is worrisome. MitM attacts are linked to a lot of ID thefts.
More information is at:
https://nakedsecurity.sophos.com/201...ge-on-flights/