Messages are not fully encrypted by default. That means the company could, in theory, access the content of the messages, or be forced to hand over the data at the request of a government. Individual messages can be fully encrypted. But the user has to turn on that function. It's not automatic, as it is on Signal and WhatsApp. However, the perpetrators of such frauds are now adopting new methods and technologies to defraud the investors. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. "Your messages about the movement of the enemy through the official chatbot … bring new trophies every day," the government agency tweeted.
from kr