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Space & Security News

From the Banana equivalent dose article in Wikipedia: The major natural source of radioactivity in plant tissue is potassium: 0.0117% of the naturally occurring potassium is the unstable isotope potassium-40. This isotope decays with a half-life...

Quickpost: Rad Pro

02/11/2026 21:10

While researching the inner workings of Geiger-Müller counters, I stumbled upon Rad Pro. It’s an open-source project developing firmware for cheap GM meters. You get yourself a GM meter and replace its firmware with Rad Pro. For some meters (like...

Last week, an often-ignored TCP option, introduced in 2020, made the news due to a new vulnerability in Linux's implementation (RFC 8684, CVE-2026-98432) Instead of looking at the vulnerability, I am using this diary to talk a bit about multipath...

A comment: 3% of ‘critical’ software security bugs, in all of recorded history, have been found in the last month. This is on pace to find another ~100,000 bugs this year alone, adding ~26% more vulnerabilities to the all time total Do you...

Recently, I had to extract embedded files from a set of OneNote files (extension .one). My onedump.py tool can extract individual files, so I would have to run this many times. To avoid this, I added a new feature to my onedump.py tool: producing...

Here is an overview of content I published in October: Blog posts: Update: onedump.py Version 0.0.3 Quickpost: Uranium Glass A Ring Tone That I Cannot Hear – Twenty Years Later Quickpost: Ghost USB-C Quickpost: WT20 Welding Electrodes & Radiation...

HTB: MakeSense

31/10/2026 14:45

MakeSense starts with a WordPress site for a web agency, with a voice call widget that transcribes recordings in the browser. I’ll find an audio file in a listable uploads directory where a user reads their password aloud, and use it to log in....

I found another material that I can buy freely and test with my Radiacode 103 radiation detector: WT20 Welding Electrodes. These are tungsten welding electrodes with 2% thorium. Thorium is a little bit radioactive and shows up in the spectrum...

Wireshark Release Candidate 5.0.0 was published: soon we can expect a new major version of Wireshark. Didier Stevens Senior handler blog.DidierStevens.com (c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons...

YARA-X's 1.22.1 is a bugfix version, it brings 2 bugfixes. Notice that there was also a release of YARA: 4.6.0, and that this release does not include the YARA-X improvement that adds built-in functions to read 64-bit integers: int64, int64be,...

Quickpost: Ghost USB-C

31/10/2026 00:00

You’ve probably encountered devices that are powered via a USB-C connector, but that don’t work when you connect them to a USB-C charger or powerbank. They only work with a USB-A to USB-C cable, not with a USB-C to USB-C cable. I used to...

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