*The Seventeenth Symposium on Usable Privacy and Security (SOUPS 2021) https://www.usenix.org/conference/soups2021 will take place on August 8-10, 2021, and will be co-located with the 30th USENIX Security Symposium https://www.usenix.org/conference/usenixsecurity21 in Vancouver, B.C., Canada.* *In cooperation with USENIX https://www.usenix.org/, the Advanced Computing Systems Association* *Important Dates* *All dates are at 23:59 AoE (Anywhere on Earth https://www.timeanddate.com/time/zones/aoe ) time. These are firm deadlines; no extensions will be granted.* - Mandatory Paper Registration Deadline: *Thursday, February 18, 2021* - Paper Submission Deadline: *Thursday, February 25, 2021* - Early Rejection Notification: *Tuesday, March 30, 2021* - Rebuttal Period: *Thursday, April 29âThursday, May 6, 2021* - Paper Notifications: *Friday, May 21, 2021* - Final Paper Files Due: *Wednesday, June 9, 2021* *PLEASE ALSO NOTE:* Feb 18 Paper Registration: Due to briefly overlapping deadlines, authors awaiting IEEE S&P notifications may register a SOUPS abstract of this same work. However, authors must immediately withdraw their SOUPS paper registration on Feb 19 if it is accepted at IEEE S&P. No other overlap in submission is permitted. Contact the SOUPS Chairs at soups21chairs@usenix.org if you have any questions.