Mae Rhwydwaith Prosiect Cydgasglu Band Eang y Sector Cyhoeddus, sy'n cysylltu'r rhan fwyaf o'r sector cyhoeddus yng Nghymru, hefyd wedi cadarnhau na chafodd ei effeithio.
The Public Sector Broadband Aggregation network, which connects most of the public sector in Wales together, has also confirmed that it has not been affected.