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TORONTO — BlackBerry Ltd. says its researchers have uncovered how China-backed hackers have been able to extract data from many of the world's servers for a decade — largely without being noticed by cyber security.

TORONTO — Some of the most active companies traded Tuesday on the Toronto Stock Exchange: Toronto Stock Exchange ( 13,614.14, up 21.44 points.) Cenovus Energy Inc. (TSX:CVE). Energy. Up five cents, or 1.32 per cent, to $3.85 on 22.9 million shares.

TORONTO — Canada's main stock index inched higher on Tuesday while U.S. markets dipped after strong rallies since last month's lows. The S&P/TSX composite index closed up 21.44 points at 13,614.14 after hitting an intraday high of 14,062.71.

HALIFAX — Nova Scotia-based undergarment manufacturer Stanfield's Ltd.

Uncertainty is everywhere in the financial world these days as the COVID-19 pandemic spreads, and that's translating into big swings in mortgage rates and challenges in how to navigate borrowing for a home.

Patience in Alberta is wearing thin for a promised aid package from the federal government for the oil and gas sector, Alberta Energy Minister Sonya Savage said Tuesday.

TORONTO — When the impact of COVID-19 led Hongwei Liu to temporarily lay off some employees and slash company forecasts, the founder of Waterloo, Ont.

FRANKFURT — The European Central Bank took more emergency action Tuesday to keep credit flowing to companies in the 19 countries that use the euro by easing its rules for lending to banks that serve those businesses.

BILLINGS, Mont. — A Canadian company said Monday that it's started construction on the long-stalled Keystone XL oil sands pipeline across the U.S.

FRANKFURT — German airline group Lufthansa said it was permanently removing some of its large aircraft from service and reducing capacity for the long term, saying it will take years for demand for air travel to return to levels seen before the coron