Featured Articles

Detecting (Malicious) Unicode in GitHub PRs
Techlore Interview (BusKill, Interdiction, and OpSec)
WordPress Multisite on the Darknet (Mercator .onion alias)
Crowdfunding on Crowd Supply (Review of my experience)
Nightmare on Lemmy Street (A Fediverse GDPR Horror Story)
Introducing BusKill: A Kill Cord for your Laptop
Trusted Boot (Anti-Evil-Maid, Heads, and PureBoot)
Why I was banned from GrapheneOS by Daniel Micay
Hardening Guide for phpList
Continuous Documentation: Hosting Read the Docs on GitHub Pages (2/2)
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Techlore Interview (BusKill, Interdiction, and OpSec)

By Michael Altfield, on December 9th, 2025
Michael Altfield Techlore Interview

I’m super happy that Techlore invited me on their YouTube channel to talk security and privacy 😀

Henry was mostly interested in my work with BusKill (an open-source dead man switch), but our conversation ran a gamut of issues regarding security and privacy — including

How to mitigate State-sponsored interdiction attacks, minimizing attack surfaces of mobile phones with broadband processors, the threats of AI “identity verification” systems on privacy, and much more

You can watch the full video below

Can’t see video above? Watch it on PeerTube at tehlore.tv or on YouTube at youtu.be/cptk6aBbJpU

If you’d like to purchase a BusKill cable, click here.

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael

tech.michaelaltfield.net/

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Monitoring Tor .onion Websites (uptime alerts)

By Michael Altfield, on March 12th, 2021
Uptime Monitoring of Tor .onion Websites

This article will present a few simple website availability monitoring solutions for tor onion services.

Problem

So you’ve just setup an Onion Service for your website, but how often do you actually check that it’s working? Maybe it’s a .onion alias to an existing website, and you usually only check it on the clearnet. What’s to prevent the darknet presence of your website from going down for weeks without you noticing?

Indeed, it’s important to monitor your .onion websites so that you can discover and fix issues before your customers do. But how? Most of the popular uptime monitoring solutions (pingdom, freshping, statuscake, etc) certainly can’t monitor .onion websites.

This guide will enumerate some solutions for monitoring .onion websites, so you get an email alert if your site goes down.

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael


. . . → Read More: Monitoring Tor .onion Websites (uptime alerts)

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