How do we retain your information?

We will retain your personal information as long as necessary to fulfill the purposes outlined in this Policy (including to satisfy our legal or reporting requirements), unless a longer retention period is required or allowed under law. To determine the appropriate retention period for personal information, we consider the amount, nature, and sensitivity of the personal information; the potential risk of harm from unauthorized use or disclosure of the personal information; the purposes for which we use the personal information; whether we can achieve the purposes through other means; and the applicable legal requirements. 

If we de-identify information, we will maintain and use the information in de-identified form and not attempt to re-identify the information except as required or permitted by law.

More detail? See here.