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Notes from the people building it.

Engineering deep-dives, architecture decisions and the reasoning behind them.

Ali Nazari

Default Credentials and Why IoT Botnets Keep Winning

Botnets are not built from clever exploits. They are built from devices that shipped with a password everyone knows and a firmware update nobody applied. What onboarding has to do instead.

IoT securitydefault credentialsbotnet
Ali Nazari

Device Identity and Zero-Touch Provisioning at Fleet Scale

A shared credential flashed into every unit is the most common and most expensive shortcut in IoT. What per-device identity costs to build, and what it saves the first time a key leaks.

provisioningdevice identitysecurity
Ali Nazari

MQTT or HTTP for Device Telemetry: What Actually Decides It

The choice is usually made on habit rather than on constraints. How connection model, payload overhead, battery cost and delivery guarantees really differ, and when plain HTTP is the better answer.

MQTTHTTPtelemetry
Ali Nazari

OTA Firmware Updates That Cannot Brick the Fleet

A field device that fails an update may be unreachable forever. The rollback, staging and power-loss safeguards that separate a routine firmware release from a truck roll.

OTAfirmwareembedded
Ali Nazari

Edge AI or Cloud Inference: Where Your Model Should Actually Run

Running inference on the device is not automatically faster or cheaper. A breakdown of latency, bandwidth, privacy and real cost, including the cases where the cloud is still the right call.

edge AIinferencemachine learning
Ali Nazari

Matter, Zigbee and Z-Wave: Choosing a Smart Home Protocol

Matter, Zigbee and Z-Wave solve overlapping problems in different ways. A practical comparison of range, interference, power and interoperability, and when a bridge is the honest answer.

MatterZigbeeZ-Wave

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