Category: Security Insights
The $500 Mobile Security Lab
The best way to understand mobile security is to see it with your own eyes, and you don’t need a corporate budget to do that. For a few hundred dollars, you can assemble a modest home lab that lets you observe how phones actually behave, what they leak, and how hardening changes things. The point
What Your Phone Actually Broadcasts (RF 101)
Your phone is a radio. Several radios, actually, and most of them are talking far more than you realize, even when the screen is dark and you’re not using it. None of this is sinister by itself, it’s how the device works, but each radio is a different way of being noticed. Here’s a plain-English
IMEI and the Law: Where Changing It Is a Crime
We’ve said repeatedly on this blog that changing your IMEI is a bad idea, and most of that advice has focused on the fact that it doesn’t technically work the way the marketing claims. There’s a second reason that deserves its own discussion: in much of the world, deliberately altering an IMEI is a criminal
Building a Secure Comms Setup for a Small Team
Securing your own phone is one thing. Securing how a small team communicates is a different problem, because the weakest member sets the security of the whole group. A team is only as private as its least careful person, and good individual habits don’t automatically add up to a secure team. Here’s how a small
The Executive’s Five-Minute Security Routine
Executives are high-value targets with no time, which is a bad combination for security. The elaborate routines that security guides recommend don’t survive a real calendar. So here’s the opposite: a short, repeatable routine that takes about five minutes and covers the things that actually matter. It isn’t everything you could do. It’s the high-value
The 7-Layer Phone Tracking Stack
Most privacy advice treats tracking like a single problem with a single fix. Install a VPN, the thinking goes, and you’re covered. The truth is that a modern smartphone leaks identity across at least seven separate layers, and almost every privacy tool only touches one or two of them. If you don’t know which layer
Why Your VPN Isn’t Hiding Your IMEI
A VPN is one of the most useful privacy tools you can run, and one of the most misunderstood. People install one and assume the phone is now anonymous. It isn’t. A VPN protects exactly one part of how your phone gives you away, and the hardware identifier your carrier cares about most is completely
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
Airplane Mode Isn’t Enough
Airplane mode feels like an off switch for surveillance. Flip it, and the phone goes quiet. It’s a useful setting, but it was designed to keep radios from interfering with aircraft, not to make you invisible, and treating it as a security boundary will get you in trouble. Here’s what it actually does and what
MAC vs IMEI Randomization: One Works, One’s a Myth
These two identifiers get lumped together constantly, and conflating them is how people end up trusting a defense that does nothing while ignoring one that actually helps. A MAC address and an IMEI are both hardware identifiers, but they live on different radios, are exposed to different watchers, and have completely different answers to the
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