How to report cyber crimes (Canada / USA)

Report cybercrimes against children (USA): https://report.cybertip.org/

Report cybercrimes against children (Canada): https://www.cybertip.ca/en/

Report ransomware attacks (US): https://www.cisa.gov/stopransomware/report-ransomware

Report cybercrime and fraud (Canada): https://report.con.rcmp-grc.gc.ca/

Report cyber incident (Canada) corporate/business: https://portal-portail.cyber.gc.ca/en/report/

Canada (other) reports:

Competition Bureau (If someone sold you something online and charged more than advertised OR sold you a product that does not perform as promised): https://www.ic.gc.ca/eic/site/cb-bc.nsf/frm-eng/GH%C3%89T-7TDNA5

Report spam: https://www.fightspam.gc.ca/eic/site/030.nsf/frm-eng/MMCN-9EZV6S

Report terrorism or foreign interference: https://www.canada.ca/en/security-intelligence-service/corporate/reporting-national-security-information.html

US (other) reports: 

Internet Crime Complaint Center: https://www.ic3.gov/