Category: Security Insights
Ultrasonic Tracking: The Vector Nobody Mentions
Most tracking you can at least reason about: radios that broadcast, identifiers that get logged. Ultrasonic tracking is stranger, because it uses sound your ears can’t hear to link your devices and follow your behavior across the physical and digital worlds. It’s the kind of thing that sounds like paranoia until you understand the mechanism,
The Bluetooth Mesh That Tracks You Across Town
Leave Bluetooth on, which almost everyone does, and your phone is a steady participant in a quiet, sprawling tracking network it never asked to join. Individually, a Bluetooth signal is short-range and harmless. Stitched together across thousands of listening points, it becomes a way to follow a device through a building, a neighborhood, and increasingly
What Forensic Extraction Tools Can and Can’t Do
Forensic extraction tools are the devices that law enforcement, border agents, and others use to pull data off a seized phone. They have a fearsome reputation, some of it earned and some of it marketing. Understanding what they actually can and cannot do, and what determines which, is far more useful than either panicking about
Memory Safety: Why Most Phone Exploits Start Here
Most successful attacks on a phone, the serious ones that take control of the device, share a common root: a category of bug called a memory-safety flaw. It’s the single most important class of vulnerability in modern software, and understanding why it matters explains a lot about what actually makes one phone harder to hack
TrustZone, Secure Enclaves, and Why a Separate Chip Matters
Modern phones all claim to protect your most sensitive secrets, your encryption keys, your biometric data, in a special secure area. But not all secure areas are built the same way, and the architectural difference between them matters more than the marketing suggests. The key question is whether that protected zone is a partition of
How to Vet a Secure Messenger
Picking a messaging app is one of the most consequential privacy decisions most people make, and the market is full of apps claiming to be secure. Some are. Many use the word loosely, and a few are actively misleading. You don’t need to be a cryptographer to tell them apart. A handful of specific questions,
Buying Hardened Phones at Scale: A Procurement Guide
Buying one secure phone is a personal decision. Buying them for an organization is a procurement problem, with budgets, deployment, support, and the awkward reality that hardened phones don’t always behave the way corporate IT expects. If you’re responsible for equipping a team or a workforce with secure devices, here’s what to think through before
Phone Security in the Cold, the Heat, and the Field
Most phone security advice assumes a phone living a comfortable life at room temperature. Plenty of people carry one somewhere harsher: a job site in a heatwave, a winter operation at forty below, a remote field posting where the phone is both a lifeline and the only computer for miles. Extreme conditions change how a
Writing Mobile Security SOPs People Actually Follow
An organization can buy the best secure phones and still leak, because security in a group doesn’t come from equipment, it comes from behavior, and behavior comes from procedures people actually follow. The standard operating procedure, the SOP, is how a team turns good intentions into consistent action. The trouble is that most security SOPs
Hardening the Home-Office Comms Hub
Remote work moved a large part of corporate communications into people’s homes, and the home was never designed to be a secure office. The same network that runs a child’s game console and a smart speaker now carries sensitive work, and attackers know it. If you work from home, your home network and devices are
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