Developing applications around SMS has become very popular, with several companies offering simple to use APIs and attractive pricing to send and receive SMS. One security-related application of these SMS APIs (for the right or wrong reasons) has been simple two-factor authentication. This time, I don’t want to talk so much about the security reasons not to use SMS to authenticate to critical systems, but some of the technical changes that are happening with SMS in the US and Canada.
Article Link: https://isc.sans.edu/diary/rss/25526