Shout out to the Security Research Legal Defense Fund for helping us go public about our train research! We're honored to have been their first grantees.
Without their financial assistance we would've had to crowdfund our legal bills, or even worse, stay quiet about the locks we've found in Impuls trains.
If you're facing legal threats (or even anticipate the possibility of such threats) as the result of security research we definitely recommend reaching out to them.