Cyberbreach at Rideau Hall Was ‘Sophisticated’ Intrusion, Internal Documents Reveal

Cyberbreach at Rideau Hall Was ‘Sophisticated’ Intrusion, Internal Documents Reveal
A sign along the wall surrounding Rideau Hall in Ottawa is seen on Jan. 21, 2021. Adrian Wyld/The Canadian Press
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OTTAWA—Newly disclosed documents reveal the breach of an internal computer network at Rideau Hall was described to senior government officials as a “sophisticated cyber incident” in the days before the public was told of the security lapse.

Internal government emails, obtained by The Canadian Press through the Access to Information Act, also say officials were “unable to confirm the full extent of the information that was accessed.”