Category: Government
eSIM vs Physical SIM: The Privacy Trade-offs Nobody Explains
The SIM card is quietly disappearing. New phones increasingly ship with an eSIM, a SIM built into the device that you activate by software instead of a chip you slot in. Carriers love it, manufacturers love it, and the convenience is real. The privacy story is more mixed than the marketing suggests, and the trade-offs
IMSI Catchers in 2025: What Works and What’s Snake Oil
IMSI catchers are real, they’re used, and the surveillance they enable is not paranoia. That’s exactly why the topic attracts so much junk. Around a genuine threat has grown a market of detector apps and anti-surveillance gadgets that mostly don’t do what they claim. Here’s how to tell the real mitigations from the snake oil.
Why Calls and SMS Aren’t Private: SS7, Explained
Most people assume that a phone call and a text message are reasonably private, protected by the phone company if nothing else. They’re not, and the reason is a piece of plumbing from the 1970s called SS7. Understanding it explains why security professionals treat ordinary calls and texts as open channels, and why your bank’s
Building a Faraday Setup That Actually Works
A Faraday bag is the closest thing to a real off switch for a phone’s radios. Wrap a device in the right material and seal it properly, and nothing gets in or out: no cellular, no Wi-Fi, no Bluetooth, no GPS reception. That’s the appeal. The problem is that a lot of homemade Faraday setups,
Secure-Phone Marketing Claims, Fact-Checked
The secure-phone market runs on bold claims, and most buyers have no way to test them. The marketing is designed that way. But almost all of the claims fall into a handful of recurring categories, and once you know how each one holds up against technical reality, you can evaluate any product’s pitch in minutes.
Why ‘Military-Grade Encryption’ Is Marketing Nonsense
If a product brags that it uses military-grade encryption, you’ve learned something, just not the thing they wanted you to learn. You’ve learned that their marketing department is writing the security claims. The phrase sounds authoritative and means almost nothing, and once you understand why, you’ll spot it everywhere. Where the phrase comes from Military-grade
How IMSI Catchers Work (and How to Spot One)
An IMSI catcher, also called a cell-site simulator or by the brand name Stingray, is one of the more misunderstood pieces of surveillance technology. People imagine something that can crack any phone from across the street. The reality is narrower and more interesting, and understanding how these devices actually work tells you exactly what does
The Emergency-Services Access Every Phone Has
There are access paths built into every phone that you can’t simply switch off, because they exist by law and by design. Two of them are worth understanding clearly, not because they’re sinister, but because pretending they aren’t there leads to bad assumptions about how private a phone can be. They are emergency-services location and
Traveling With a Secure Phone: A Practical Checklist
Travel is where your phone is most exposed: unfamiliar networks, border searches, devices out of your sight. A practical, no-paranoia checklist for the road.
Face Unlock or Passcode: Which Actually Protects Your Phone?
Face and fingerprint unlock are convenient. A passcode is stronger where it counts. Here’s the honest trade-off, including the part most people miss.
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