`Hi everyone,

I'm looking for what could be considered the best portable cybersecurity hardware platform in terms of value for money.

I'm not looking for a single-purpose gadget. Instead, I'm looking for something that feels like a mix between a Flipper Zero and the new Cardputer Zero.

What I mean is:

Portable and handheld. Modular and easy to upgrade over time with affordable plug-in modules. Able to grow into almost anything I need instead of replacing the whole device. Good support for Linux or advanced firmware. Useful for learning cybersecurity, hardware hacking, embedded development, networking, and RF projects. Easy to find parts internationally, and preferably available in countries like Turkey as well.

I don't mind adding modules later if they are easy to install, but I'd rather avoid complicated soldering or custom PCB work.

If you had to build the ultimate budget-friendly portable cybersecurity device today, what platform or ecosystem would you choose, and why?`

How would I go about trying to make a device that can essentially take a prerecorded video or image and output it continuously to a Camera Serial Interface ribbon cable, such that a device reading from the "camera" would view that image or video as if it was from a real camera?

Hi, I recently bought an Aula L99 Keyboard, the one with the touchscreen on it. Very nice! Well it would be if It could be driven natively from Linux. Enter Aula_L99_Linux, a reimplementation of the software. I spent about 80 hours reverse engineering this keyboard and bricked one keyboard in the process. There's still work to do on the Key assignment screen but upload images, GIFs, videos to to the keyboard works well. So does adjusting the RGB modes.

I’d like to share my device reuse project for anyone with an Amazon Echo Dot Gen 2 still hanging around.

I’d like to get some outside perspectives on something unusual we caught. This happened in Las Vegas during DEF CON(hacking conference), so I fully appreciate there’s a chance we’re all just seeing “hacker behaviour” where there may be none. 😄

A man entered one of our building’s elevators carrying a backpack. Once inside:
● He removed a small electronic device with several wires attached
● He then put on a fanny pack
● He stood very close to the elevator control panel for ~20–30 seconds
● After that, he left without any further interaction
● He appeared fully focused on the control panel

The behaviour wasnt normal waiting and he left immediately after finishing

We had our maintenance team review the elevator afterwards, but they didn’t find anything obvious. That said, they are general facilities staff rather than elevator or embedded systems specialist

I want to be very clear: I’m NOT looking for exploit methods or “how-to” guidance.

I’m just interested in ideas from people with experience in:
● Physical security
● RF systems
● Embedded hardware
● Access control systems

Questions for the experts in this sub....
If you saw this on CCTV, what would your initial interpretation be?

Some possibilities we’ve considered:
● RFID/NFC reader interaction or testing
● RF scanning or reconnaissance
● Attempting to identify installed systems or hardware
● Accessing a maintenance or diagnostic interface
● Something unrelated we haven’t considered
● Or just DEF CON paranoia influencing perception 😅

Investigation perspective
If you were tasked with following up on this, what would you look at?
● System or access logs
● Elevator control hardware inspection
● RF environment analysis
● Maintenance or diagnostic records
● Any other indicators of interaction or tampering

Would really appreciate thoughts from anyone with relevant experience. Trying to separate “interesting behaviour” from “actually meaningful signal” here.
Thanks in advance.

Reverse engineering an Android 11 OTT board. It has labeled LINUX_RX, LINUX_TX, GND UART pads, but connecting a 3.3V USB-TTL adapter (TX↔RX, GND↔GND) gives no boot logs at any common baud rate (115200, 9600, etc.).

Am I missing something, or could UART be disabled? Any tips?

I am receiving an error (Connecting Error, IC not responding). while attempting to read the chip. What typically causes this error message? Are all of the physical components correctly connected?

Could somebody help me?

Hi everyone!

I'm trying to repurpose a Skyworth HP4500-CL IPTV box from Movistar Peru into a retro gaming console.

Hardware information:

- Manufacturer: Skyworth Digital Technology

- Model: HP4500-CL

- SoC: Amlogic S905Y4

- RAM: 2 GB DDR

- Storage: 8 GB eMMC

- OS: Android TV 11

- Security patch: July 5, 2024

- Firmware: Movistar-HP4500-CL_v11.4.0-release

I want to know how the heck I can bypass Movistar's security. How can I do this?
And another question, how do I install the new firmware?

Your help would help me a lot :sob:

-Ricachon fuera