Hello, my name is JI and I am working at LINE as a security engineer.
People might have wondered how safe mobile applications are. Message security is surely something most of you have thought about before. As we are centered around mobile messaging, all the engineers at LINE do take extra care to make our app even safer. But when companies are asked about how safe their message transfer process actually is, not many mobile messaging app companies are able to clearly explain about their security.
Today, I proudly present the newest security feature called “Letter Sealing.” A new feature added in version 5.3.0 of LINE.
Safe delivery of messages
Since time immemorial, methods to transfer secrets between one another have existed, and were an important part of human history. People would whisper secrets in dark alleyways or sometimes even devise a code to prevent any potential eavesdroppers from understanding what they were saying.