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Cybergibbons

Reverse engineer, hardware hacker, security analyst, lock picker, heist planner. Definitely not involved in the Hatton Garden job.

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“You don’t pay any Road Tax” and other Common Anti-Cyclist Tropes

You don t pay any road tax! Yes, we know you are using the term road tax to mean VED (Vehicle Excise Duty). It s not a road tax though it s a tax on your vehicle. It s based the CO2 emissions, age and cost of your vehicle. There are many vehicles on the road zero [ ]

What3Words – The Algorithm

What3Words is a widely promoted system that is used for sharing a location using just three words. For example, ///wedge.drill.mess is located in Hyde Park.The globe is divided into 3m squares, each of which has a unique three word address to identify it. They claim that mistakes like changing a word into a plural, [ ]

Fixing What3Words?

There are an awful lot of people saying that fixing the issues with What3Words is simple : just remove the plurals! Get people to read it out twice! Spell the words! This shows that people haven t understood the problem fully, or looked at the other issues What3Words has. What problem are we trying to solve? What3Words, [ ]

Why What3Words is not suitable for safety critical applications

What3Words is a widely promoted system that is used for sharing a location using just three words. For example, ///wedge.drill.mess is located in Hyde Park.The globe is divided into 3m squares, each of which has a unique three word address to identify it. Many UK police, ambulance and fire services advocate the use of What3Words [ ]

Nurserycam disclosure timeline

The issue described in the previous blog about Nurserycam has been present for a number of years. This post collates the previous times that it was disclosed to Nurserycam that I know of. If you also reported an issue, please use the contact form on this page, or DM me on Twitter. I will not [ ]

A warning to users of NurseryCam

This blog post is intended for a less technical audience specifically parents and nurseries using the NurseryCam system. NurseryCam is a camera system that is installed in nurseries, allowing parents to view their children remotely. There are tens of nurseries stating that they use this system. News articles go back as far as 2004. [ ]

Serious issues in NurseryCam

I am not disclosing these issues lightly. They impact real people: children and parents. I am not following the disclosure policy I follow normally as part of professional work due to the severity. Given how the owner of FootFallCam have behaved, I cannot hold these back. The business managing these systems have not demonstrated they [ ]

Flying Drones in London Boroughs (and surrounds)

Just a quick post about the different rules for flying drones around London. Remember, always check for no-fly zones, airports, and obey all other rules. These rules largely concern parks and other open spaces. It can be difficult to determine where the rules apply to. London Borough of Richmond Upon Thames Limited According to [ ]

Reading and writing firmware on an STM32 using the serial bootloader

Last time we looked at using the SWD interface of an STM32 ARM chip. This isn t the only way we can interact with this device though. It also contains a serial interface on the bootloader than allows us to read and write to the flash memory. It s nowhere near as powerful as the SWD interface. [ ]

Reading and Writing Firmware on an STM32 using SWD

STMicroelectronics STM32 processors are some of the most common ARM microcontrollers we see in IoT devices. We often want to read the firmware from these so we can examine it and find any vulnerabilities or hidden functionality. We will use the simple software utility stlink to do this. Target Device We will be looking at [ ]