How a broken auto-updater left my blog open to a WordPress core RCE (wp2shell, CVE-2026-63030) and the boring IP rule that saved it anyway.
The patch that couldn’t install: a WordPress core exploit created an admin on this blog
The “S” in IoT stands for Security
Reminder: the "S" in IoT stands for Security
Basic PKI PoC
I need a node.js guru volunteer to work with me on creating basic PKI PoC that provisions #ESP32 devices with client certificates; node-forge looks right for the purpose. I have the complete solution architecture figured, just need a node.js guru that can code it for free 🙂 Couple volunteers already, thanks @eliofilipe and @MrQinEL ;…
mTLS to secure IoT solutions
Sharing some thoughts on using mTLS (mutual TLS authentication) to secure IoT solutions in a blog post: https://harizanov.com/2019/06/using-mtls-to-secure-iot-solutions/
Using mTLS to secure IoT solutions
Notes on securing IoT devices with mutual TLS (mTLS) – what it adds over one-way SSL and how I apply it in my own projects.
Got featured on @hackaday
Got featured on @hackaday .. again 🙂 https://x.com/hackaday/status/976639868263542785
Enhancing my ordinary IP security cameras with AI
Adding AI object detection to my plain IP security cameras – how accessible AI has become for DIY IoT projects.
High security keyfob project
New post: High security keyfob project http://harizanov.com/?p=4362
High security key fob project
Building a high security key fob around Atmel’s ATSHA204 – because rolling code fobs turn out to be quite hackable.
Security, Big Data and other challenges to the IoT
I will be doing a tech session on "#Security, Big Data and other challenges to the #IoT" at @ISTA_Conference 2017 https://www.istacon.org/Sessions/Session/12DCE70C-7085-4499-87DC-6D2954571FD5
Some thoughts on security in terms of IoT
Some thoughts on IoT security: billions of records in transit daily, and most of the sensors sending them were never designed to be safe.
Interfacing with Paradox home security system attempt 2
Second attempt at decoding the Paradox alarm keypad bus – reading alarm state, PIRs and door/window sensors for home automation use.
Interfacing with Paradox home security system
Tapping into my Paradox home security system to read armed/disarmed state and zone statuses – free presence data for home automation.