Comparative law notes
This phrase ("cease-and-desist letter") is best used in an Intellectual property law where the two concepts are functionally almost identical.
There are multiple definitions - click on the translation that matches your context.
Abmahnung
Substantiv
partial
cease-and-desist letter
noun
Definitions of cease-and-desist letter
a letter, usually from a lawyer, demanding that the recipient (=person who receives) stop some activity that is violating the rights of the client or sender
A cease-and-desist letter to the Children Services Independent Union demanded they stop making false statements.