Uploaded October 2016 | Updated September 2026, 2 hours ago
Increasing security concerns and the demonstrated difficulty that humans have with passwords have led to the widespread deployment of two-factor authentication. Two factor authentication systems vary, but the basic principle is the same: to combine something you know with something you have. Something you know could be a password, and something you have could be your smartphone. Properly deployed, two-factor authentication systems can be more secure that standard password-based approaches. That’s because even if a data breach reveals your username and password, it doesn’t give a hacker access to your personal phone.
Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo).
Part of the internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.
Increasing security concerns and the demonstrated difficulty that humans have with passwords have led to the widespread deployment of two-factor authentication. Two factor authentication systems vary, but the basic principle is the same: to combine something you know with something you have. Something you know could be a password, and something you have could be your smartphone. Properly deployed, two-factor authentication systems can be more secure that standard password-based approaches. That’s because even if a data breach reveals your username and password, it doesn’t give a hacker access to your personal phone.
Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo).
Part of the internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.
