⚏ Digram For Greater Yin

⚏- Digram For Greater Yin, written number four (4), Secret Service: Secret group
Japanese Emojis use the ⚏ for the number 4 in their local town of Japanese Emoji. One day discovered a high-ranking employee of the Secret Service in the 📱 Mobile Phone of his Japanese professional colleague the ⚏ symbol instead of the number 4. Later he suggested to the uppermost boss of the Secret Service to use the ⚏ sign. Later decided the Secret Service to use the ⚏ symbol for secret group.
In communication use Emojis this symbol for the written number 4.