Once. Someone named “Vincenzo lozzo” wrote to Epstein in email, in 2016: “I wouldn’t pay too much attention to this, Schneier has a long tradition of dramatizing and misunderstanding things.” The topic of the email is DDoS attacks, and it is unclear what I am dramatizing and misunderstanding.

Rabbi Schneier is also mentioned, also incidentally, also once. As far as either of us know, we are not related.

EDITED TO ADD (2/7): There is more context on the Justice.gov website version.

This is a current list of where and when I am scheduled to speak:

• I’m speaking at the David R. Cheriton School of Computer Science in Waterloo, Ontario, Canada, on January 27, 2026, at 1:30 PM ET.
• I’m speaking at the Université de Montréal in Montreal, Quebec, Canada, on January 29, 2026, at 4:00 PM ET.
• I’m speaking and signing books at the Chicago Public Library in Chicago, Illinois, USA, on February 5, 2026, at 6:00 PM CT.
• I’m speaking at Capricon 46 in Chicago, Illinois, USA. The convention runs February 5–8, 2026. My speaking time is TBD.
• I’m speaking at the Munich Cybersecurity Conference in Munich, Germany, on February 12, 2026.
• I’m speaking at Tech Live: Cybersecurity in New York City, USA, on March 11, 2026.
• I’m giving the Ross Anderson Lecture at the University of Cambridge’s Churchill College at 5:30 PM GMT on March 19, 2026.
• I’m speaking at RSAC 2026 in San Francisco, California, USA, on March 25, 2026.

The list is maintained on this page.