Raspberry Pi 4 self-hosts a site that prints anonymous messages on a receipt printer. Docker + Cloudflare Tunnel route traffic; PHP generates ESC/POS and writes to /dev/usb/lp0. Printed results ...
Hackers are attacking business receipt printers to insert pro-labor messages, according to a report from Vice and posts on Reddit. "Are you being underpaid?", reads one message and "How can the ...
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