Can you ever be sure that someone has deleted your data? Anne Broadbent (University of Ottawa) tells us about a protocol for "quantum certified deletion", where a recipient of your information can prove to you that they've deleted your information. We learn about her paper with Rabib Islam introducing quantum certified deletion and some of its possible applications to privacy.  Hosts: Vincent Russo (vprusso.github.io), William Slofstra (elliptic.space), Henry Yuen (henryyuen.net) Broadbent, Islam. Quantum encryption with certified deletion (https://arxiv.org/abs/1910.03551). Rabib Islam's QCRYPT 2020 talk on their paper: https://www.youtube.com/watch?v=nT8MQC6d358 Theme music is WLIIAW by Vincent Russo.