@article{SMBlog:2017-10-27,
	author = {Steven M. Bellovin},
	title = {Historical Loop},
	date = {2017-10-27},
	year = {2017},
	month = {October 27,},
	journal = {SMBlog: Steve Bellovin's Blog (blog)},
	url = {https://www.cs.columbia.edu/~smb/blog/2017-10/2017-10-27.html},
}