http://keith.seas.harvard.edu/blog/climate-impacts-biking-vs-driving Original post: Link Source: Climate Impacts of Biking vs. Driving

Golden Gate Park. Conservatory of Flowers. San Francisco. Orchids. Butterflies. [gallery] Location: Golden Gate Park San Francisco, CA, United States Original post: Link

Beach. . Location: Mile Rock Beach Lands End Trail, San Francisco, CA 94121, USA Original post: Link

My 2017 RSA Conference talk, "Tracking Darknet: A Window into Attackers’ Motives, Methods and Targets" Original post: Link

Tracking Darknet: A Window into Attackers’ Motives, Methods and Targets. The presentation is available as a PDF as well. https://www.youtube.com/watch?v=6KMGRanPwos