Corey Christiansen, APS’s public information officer, stated the cause for the outage was “potential suspicious activity” spotted within the network Monday.

The entire Aurora Public School District is now on day three of no internet or phone service. Some employees noticed some potentially suspicious activity within their network and reported it on Monday.

Aurora Public Schools will operate on a two-hour delayed start Thursday and Friday due to an internet and phone outage. The district said the delayed start is intended "to support our teachers and staff in preparing for the school day.