Teaching
Spring '21:
Spring office hours via
Zoom:
or by appointment.
Monday | 3:00pm–4:00pm |
Tuesday | 2:00pm–3:00pm |

Contact
Email: smb@cs.columbia.edu
Voice: +1 (212) 939-7149
Fax: +1 (646) 775-6023
FaceTime: smb@cs.columbia.edu
Skype: By arrangement
Twitter: @SteveBellovin
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