Most cited

Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 716 posts.

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2018
181

How to implement a basic ActivityPub server

Today we’ll be looking at how to connect the protocols powering Mastodon in the simplest way possible to enter the federated network. We will use static files, standard command-line tools, and some simple Ruby scripting, although the functionality should be easily adaptable to other programming languages. First…

185

Tracking Firm LocationSmart Leaked Location Data for Customers of All Major U.S. Mobile Carriers Without Consent in Real Time Via Its Web Site

LocationSmart , a U.S. based company that acts as an aggregator of real-time data about the precise location of mobile phone devices, has been leaking this information to anyone via a buggy component of its Web site — without the need for any password or other form of authentication or authorization — KrebsOnSecurity…

190

Signal Foundation

Long before we knew that it would be called Signal, we knew what we wanted it to be. Instead of teaching the rest of the world cryptography, we wanted to see if we could develop cryptography that worked for the rest of the world. At the time, the industry consensus was largely that encryption and...

208

Why FTL implies time travel

In science fiction, it is pretty standard fare to introduce some form of faster-than-light communication or travel. After all, space is big, and you can't write your swashbuckling Hornblower-in-space novel if you have to wait for a generation ship to crawl painfully slowly between the nearest stars,