Investigator515
Investigator515

Investigator515

Writing about cybersecurity, technology, and open source intelligence strategies. Passionate about giving people the tools they need to feel empowered by technology, not overwhelmed. Did we also mention we're straight-up nerds at heart? Get the latest information on blog posts and production information via Telegram: t.me/investigator515


Before Bluetooth Ruled: When Devices Talked With Light.

14 Oct 2026 4 minute read 3 comments Investigator515 $0.09

Infrared was once the future of mobile data. Decades later, light-based links are finding a new purpose Today you see someone you’re interested in, and you might go and ask for an Instagram account. Back in the day though, all the cool kids used ligh...

The Anatomy Of A Signal: MHz, Bandwidth & Noise Explained

11 Oct 2026 3 minute read 1 comment Investigator515 $0.12

While some readers are pretty comfortable with exploring the spectrum and using their SDR device to explore and find different signals, we’re also trying to encourage newbies to grab a device and get to experimenting as well. And if you happen to be...

The ESP32 Remote ID Sniffer

3 Oct 2026 6 minute read 5 comments Investigator515 $0.07

For less than $50.00 in parts, you can build your own remote ID sniffer. Note: This prototype was built with parts that were on hand and available. It’s under ongoing development, and as with most hardware builds, it came with some unexpected hurdles...

The Signal You Can't Trust: Remote ID & The Drone Security Problem

25 Sep 2026 7 minute read 0 comments Investigator515 $0.07

Every day, people across the globe use an assortment of devices and platforms to track the movements of ships, planes and other transportation assets. While this can often be purely for hobby purposes, plenty of systems also rely on accurate tracking...

Attack Vectors: The RF Attack Surface

20 Sep 2026 6 minute read 1 comment Investigator515 $0.10

If you haven’t spent much time around computers and cyber, it might surprise you to learn that pattern detection plays a huge role in both human and machine activity. Signature detection allows antivirus systems to work, while human analysts become s...

Drone Detection With Drone Aware

16 Sep 2026 7 minute read 0 comments Investigator515 $0.07

With the rapid adoption of drone technology in recent years, you often won’t have to wait long to see one out in the world around you. Because of this rapid adoption, though, compliance strategies have been put in place in many countries. This can in...

So What Do You Do With That Old Sat Dish Anyways?

6 Sep 2026 5 minute read 2 comments Investigator515 $0.11

You don’t need a government budget to do meaningful science in space.   Interesting questions come from interesting places. Sometimes they come from social media. Sometimes, they’ll land directly in your email inbox.   But sometimes, you get someone...

Messages From Space: Intercepting Satellite ACARS

2 Sep 2026 5 minute read 0 comments Investigator515 $0.07

L-band satellite traffic is a great next step when you outgrow weather satellites. If you remember the recent satellite dish article, where we looked at how old dishes can be repurposed, you might recall that we specifically called out ACARS as a sys...

Radio & The Faraday Cage

19 Aug 2026 4 minute read 1 comment Investigator515 $0.07

Understanding how a shielded box would change how we think about RF security. As you read this, what is broadcasting in the room around you? You probably have a phone, a wristwatch, maybe some wireless headphones, perhaps. In a digital world, it’s no...

What The Tech?! Automatic Teller Machines

11 Aug 2026 6 minute read 2 comments Investigator515 $0.06

What The Tech?! has always aimed to cover the most interesting parts of the technological evolution. While plenty of technology has helped to shape the modern world, some stories are more interesting than others, and today certainly meets that brief....