Cool story, but not a response to my question. When has a company -- even a single one -- been required to backdoor a product they ship to customers by any kin

Cool story, but not a response to my question. When has a company -- even a single one -- been required to backdoor a product they ship to customers by any kind of court order? (Lavabit is different in lots of ways. #1: not a product. #2: They actually had the evidence the government wanted and told the government so.)