Lemmy.zip

2,757 readers
260 users here now

Welcome to Lemmy.zip - a community for like minded people to come and have a chat about almost anything. From games to tech, to anything else, come and have a chat.

If you're new and would like to join Lemmy.zip, please fill in the sign up form. Email verification is required. (Please check your spam folder!)

Once you're signed up, come and introduce yourself in our Home community!


Useful Links


Instance Rules

To maintain the high standard of discourse and interaction we all value, each user must adhere to the guidelines outlined in our Code of Conduct. This set of rules is designed not just to maintain order but also to ensure a safe and inclusive environment for everyone to share their thoughts and ideas.

What to Expect in Our Code of Conduct:

If you enjoy reading legal stuff, you can check out legal.lemmy.zip.


Funding

If you would like to contribute to the upkeep of Lemmy.zip, please head over to OpenCollective.
Anything you're happy to donate is very highly appreciated!
You'll even get your name in the Thank You thread.

Open Collective backers

If you want to use PayPal, you can donate via Ko-Fi:


Server

Uptime


founded 1 year ago
ADMINS
1
 
 

Polish article

From https://lemmy.world/post/9227800

Train manufacturer intentionally bricks trains serviced by independent service providers

Polish train manufacturer that lost servicing tender programmed train controller to brick itself after train stays for some time in 6 ISP facilities or in 1 their faculity(for testing?) until undocumented button combination is pressed. Some controller versions brick itself after train is idle for 10 days. After news about this became public, manufacturer removed ability to unlock train by button combination.

Also manufacturer is able to remotely brick train over internet(connected via GSM) at any time.

2
 
 

A polish hacker found out why trains did stop working. The manufacterer implemented a hidden electronic switch, which automatically activated after trains were serviced by a different company.

3
 
 

Polish train manufacturer that lost servicing tender programmed train controller to brick itself after train stays for some time in 6 ISP facilities or in 1 their faculity(for testing?) until undocumented button combination is pressed. Some controller versions brick itself after train is idle for 10 days. After news about this became public, manufacturer removed ability to unlock train by button combination.

Also manufacturer is able to remotely brick train over internet(connected via GSM) at any time.

Full versions: Polish(original), Russian

4
 
 

A Mastodon thread by @q3k, who, together with @redford and @mrtick have reverse engineered the PLC code of NEWAG Impuls EMUs

5
6
 
 

There is a discussion on Hacker News, but feel free to comment here as well.

view more: next ›