Frequently Asked Questions-Computing Services ISO - Carnegie Mellon University

Frequently Asked Questions

The following is an ongoing effort to answer common questions posed by students, faculty and staff of the University.  Look below to find answers to common security and privacy questions.  If you have questions you'd like us to answer here, please send email to

Is it safe to click on unsubscribe links in unwanted email (aka spam)?

How can I reduce the amount of unsolicited email (aka spam) I receive?

I want to use a QR code in my marketing materials. Is there any guidance?

Are QR codes safe to scan?

Is it safe to enable Bitlocker key recovery on our domain controller(s)?

Is it safe to use the Andrew Domain controllers to store my Bitlocker key recovery information?