A decade or two ago, it would have been hard for in-house lawyers to imagine just how much of an asset (and potential liability) data would someday be for their companies. But looking at some of the major legal headlines of 2015, it’s clear data is here to stay.

There were far too many data privacy and security stories in 2015 to list, but below are five that were especially big for companies and should have consequences for years to come: