A (incomplete) Tl;DR: The strategy that is well tried in the US is to go for counterfeiting/copyright, to seek the most damages. Copyright/IP law can carry sig

A (incomplete) Tl;DR: The strategy that is well tried in the US is to go for counterfeiting/copyright, to seek the most damages. Copyright/IP law can carry significantly more damages, both in France and in the US, compared to a contractual dispute. (Remember that it’s all about money!) For an IP violation, the court typically looks at the gain of the counterfeiter. That may be winning and executing the government contracts for Orange. My guess is a government contract like that can go for 7 to low 8 figures. For a contractual violation, the court typically looks at the loss of the victim. That may be some licensing fees and contracting fees for Entr’Ouvert. My guess is a library like that can go for 6 figures, while the bigger player selling OIDC/SAML solutions (Sun, ForgeRock, Oracle, Microsoft) go for an amount per user per year, easily adding up to 7 figures (but I don’t think that one standalone library from a small vendor in 2003 can do that). Entr’Ouvert followed the counterfeiting strategy, they sued for counterfeiting and got dismissed. (I should stress out that it was a very reasonable strategy, similar law exist, it should have worked, it just didn’t).