
The 2018 Toronto shooting, known locally as the Danforth shooting, was a mass shooting that occurred on Danforth Avenue in the Greektown neighbourhood of Toronto, Ontario, Canada, on the night of July 22, 2018. Faisal Hussain killed two people and wounded thirteen using a Smith & Wesson M&P .40-calibre. He committed suicide after a shootout with Toronto Police Service (TPS) officers.

Colonel Atilla Altıkat was the Turkish military attaché to the Turkish Embassy in Ottawa, Ontario, Canada, and was assassinated in 1982. The Armenian justice group ASALA claimed responsibility for the attack. The act was forcefully condemned by the Prime Minister of Canada, Pierre Trudeau.

The Atomwaffen Division, also known as the National Socialist Order is a neo-Nazi terrorist network. Formed in 2015 and based in the Southern United States, it has since expanded across the United States and into the United Kingdom, Canada, Germany, the Baltic states and other European countries. The group is part of the alt-right, although the group rejects the label and is considered extreme even within that movement. It is listed as a hate group by the Southern Poverty Law Center (SPLC).

Robert Baldwin was an Upper Canadian lawyer and politician who with his political partner Louis-Hippolyte Lafontaine of Lower Canada, led the first responsible government ministry in Canada. "Responsible Government" marked the country's democratic independence, without a revolution, although not without violence. This achievement also included the introduction of municipal government, the introduction of a modern legal system and the Canadian Jury system, and the abolishing of imprisonment for debt. Baldwin is also noted for feuding with the Orange Order and other fraternal societies. In reaction to the Rebellion Losses bill, which emerged during his government, outraged Anglo-Canadian Tory citizens burned the Parliament buildings in Montreal in 1849.

Charkaoui v Canada , 2007 SCC 9, is a landmark decision of the Supreme Court of Canada on the constitutionality of procedures for determining the reasonableness of a security certificate and for reviewing detention under a certificate. The Court held that the security certificate process, which prohibited the named individual from examining evidence used to issue the certificate, violated the right to liberty and habeas corpus under section 7, 9 and 10 of the Canadian Charter. The Court however rejected the appellant arguments that the extension of detentions violated the right against indefinite detention, that the differential treatment violated equality rights, and that the detention violated the rule of law. As remedy, the Court declared the "judicial confirmation of certificates and review of detention" to be of no force and effect, striking down articles 33 and 77 to 85 of the Immigration and Refugee Protection Act, but suspended the ruling for one year.

Mohamed Harkat is a native-born Algerian and permanent resident of Canada who was arrested in 2002 on suspicion of ties to terrorism and was imprisoned under security certificates. The Canadian Security Intelligence Service (CSIS) alleged that he entered the country as a sleeper agent for al-Qaeda.

In the ten days immediately following the September 11 attacks in the United States in 2001, the Royal Canadian Mounted Police (RCMP) initiated Project Shock which sought to quickly collect and act on any information or rumors related to possible threats posed by Muslims in Canada.

The Toronto van attack was a terrorist vehicle-ramming attack that occurred on April 23, 2018, when a rented van was driven along Yonge Street through the North York City Centre business district in Toronto, Ontario, Canada. The driver targeted pedestrians, killing 10 and injuring 16, some critically.