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📰 Dev.to · Marco

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I made my portfolio site audit its own security headers, live, in front of you

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 1mo ago

I made my portfolio site audit its own security headers, live, in front of you

A portfolio card that runs a same-origin HEAD request to audit its own security headers live, and why the real CSP has to live in two places.

"I made my portfolio site audit its own security headers, live, in front of you"

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 1mo ago

"I made my portfolio site audit its own security headers, live, in front of you"

My portfolio has a section that runs curl -I on itself while you watch. Not a screenshot of headers I...

Bluetooth Channel Sounding: precise BLE ranging for embedded IoT

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 2mo ago

Bluetooth Channel Sounding: precise BLE ranging for embedded IoT

Most BLE proximity features start with RSSI. That is fine when the product only needs a rough "near...

Post-quantum cryptography for embedded and IoT: secure boot, TLS and OTA

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 3mo ago

Post-quantum cryptography for embedded and IoT: secure boot, TLS and OTA

Post-quantum cryptography is no longer just a research topic. It is starting to affect the way...

eBPF on embedded Linux: diagnostics and runtime security for edge devices

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 3mo ago

eBPF on embedded Linux: diagnostics and runtime security for edge devices

eBPF is no longer only a cloud-native observability topic. For embedded Linux teams, it can become a...

Custom ESP32 embedded solution for IoT devices: case study

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 3mo ago

Custom ESP32 embedded solution for IoT devices: case study

A custom ESP32 embedded solution with modular firmware, security features and Wi-Fi/BLE connectivity for connected products.

U.S. Cyber Trust Mark: what IoT firmware teams should prepare

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 3mo ago

U.S. Cyber Trust Mark: what IoT firmware teams should prepare

What the U.S. Cyber Trust Mark means for IoT and embedded product teams: firmware updates, secure boot, vulnerability handling and documentation.

Hardware security for embedded devices: TPM and TrustZone

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 3mo ago

Hardware security for embedded devices: TPM and TrustZone

How hardware roots of trust help embedded products protect keys, boot chains, firmware integrity and sensitive operations.

Secure embedded Linux: CRA, secure boot and OTA updates

Dev.to · Marco 🔐 Cybersecurity ⚡ AI Lesson 3mo ago

Secure embedded Linux: CRA, secure boot and OTA updates

How embedded Linux teams can approach security-by-design with secure boot, signed updates, SBOMs, vulnerability management and EU regulatory pressure.