History and specifics
Emben III was a member of the Federation and was connected to its interstellar databases.
In 2267, a computer virus hidden in an update to Federation-wide databases erased all the planet's historical and medical records, along with those of many other worlds. The starship USS Enterprise visited Emben III and assisted the Embenians in rebuilding their electronic records, and did likewise on Cynur IV and Tyrtaeus II. (TOS novel: Heart of the Sun)