In the case of Libra, the money which customers use to buy Libra in exchange for legal tender is invested in bank deposits and short-term government securities. The value of Libra is pegged to the value of the reserve built up in this way. As central banks, we are generally open to innovation, but the safety and efficiency of payments must be ensured.
In fact, a G7 working group recently already reported to the G7 finance ministers on the potential risks of Libra. However, there is still an extensive list of questions which needs to be answered by the Libra Association before final assessments can be made.