@article{SMBlog:2019-09-12,
	author = {Steven M. Bellovin},
	title = {What is a Security Mechanism?},
	date = {2019-09-12},
	year = {2019},
	month = {September 12,},
	journal = {SMBlog: Steve Bellovin's Blog (blog)},
	url = {https://www.cs.columbia.edu/~smb/blog/2019-09/2019-09-12.html},
}