This is the 18076th most frequent Russian word.
хакерам
"Хакерам" means "to hackers" in English.
Here, "хакерам" is in the dative case and used to indicate the recipients of the message, showcasing a directed action toward hackers.
Мы отправили хакерам сообщение для проверки системы.
We sent the hackers a message to check the system.
In this sentence, "хакерам" is also in the dative case, describing the group to whom the mystery remained unclear, denoting an indirect impact or effect.
Несмотря на усилия, загадка осталась непонятной даже хакерам.
Despite the efforts, the mystery remained unclear even to the hackers.
Here, "хакерам" in the dative case indicates the group targeted by the threat, reflecting the indirect object of the sentence.