Case Study: Fasken (Top Canadian Law Firm) achieves 100% phishing reduction and 18k+ hours saved with Abnormal AI

Top Canadian Law Firm Fasken Improves Security and Efficiency with Autonomous AI

Fasken, one of Canada’s largest law firms with 4,100+ protected mailboxes, was struggling with a steady stream of phishing, social engineering, and graymail after retiring its SEG and relying on Microsoft 365 native tools. The volume forced 8–10 analysts to review emails daily and distracted attorneys from billable work, so Fasken turned to Abnormal AI—deploying its inbound email security, account takeover protection, AI security mailbox, email productivity, and security posture management solutions—to stop threats and restore productivity.

Abnormal AI integrated with Microsoft 365 via API and automated detection, remediation, and graymail filtering, freeing the security team to focus on threat hunting and education. The deployment delivered a 100% reduction in advanced phishing reaching inboxes, cut analyst email remediation to about 2 hours per month, and saved thousands of employee hours (4,625 employee + 96 VIP hours in 90 days; over 18,000 hours estimated annually from graymail), while providing improved visibility and faster incident response.

Fasken

Patrick Bryant

Manager of Information Security Architecture and Operations