Teaching
Spring '23:
Fall '23:
or by appointment. (Office hours are for walk-ins, with
no appointment needed. If you
have something complex you need to discuss with me, it's
better to make an appointment; I have reasonable availability.)
No office hours Wednesday, April 5.

Contact
Email: smb@cs.columbia.edu
Voice: +1 (212) 853-8427
Fax: +1 (212) 853-8440
Zoom, FaceTime, or Skype: By arrangement
Mastodon: @SteveBellovin@mastodon.lawprofs.org
454 Computer Science Building
Department of Computer Science
Columbia University
500 West 120th St, M.C. 0401
New York, NY 10027-7003
More From Me
SMBlog—Pseudo-Random Thoughts on Computers, Society, and Security
Photography in New York City
The Prehistory of Public Key Cryptography