Server security doesn’t need to be complicated. My security philosophy is simple: adopt principles that will protect you from the most frequent attack vectors, while keeping administration efficient enough that you won’t develop “security cruft... | Tinkerer & Doer. Co-Founder of Sincerely.com • Bryan Kennedy’s blog
"Airsage has taken it to the next level in the more recent past with GPS based anonymized data, but data with EXTENSIVE history. The Airsage product is zip code and smaller resolution and can provide months to years of location history of an anonymous cell phone id. " -- https://news.ycombinator.com/item?id=14803443