The phrase "major outage" means a significant disruption or failure of a system, service, or network that affects a large number of people or users. Full definition
It was the second major outage in less than a week, with the previous one affecting some 840,000 customers. (apnews.com)
The Toronto Stock Exchange's last major outage occurred nearly a decade ago, when a system fault linked to data feeds shut down trading for a full day in 2008, including on the small - cap TSX Venture Exchange. (cnbc.com)
The TSX» last major outage occurred nearly a decade ago, when a system fault linked to data feeds shut down trading for a full day in 2008, including on the small - cap TSX Venture Exchange. (cnbc.com)