Quarterly breach intelligence filtered for law firms, CPA practices & wealth managers
AI-generated spear phishing crossed the human-detection threshold in Q1, tax season became a structured attack window, and the SEC issued its first enforcement actions under amended cybersecurity rules — targeting RIAs not for breaches, but for missing documentation.
Firms adopted AI drafting and research tools without data processing agreements, creating undisclosed subprocessor exposure. Cloud consolidation expanded vendor chains faster than review processes could track.
BEC and credential-stuffing campaigns reached record levels. Law firm and CPA email infrastructure targeted disproportionately relative to firm size. MFA fatigue and session token theft emerged as primary entry vectors.
OAuth tokens, SaaS integrations, and trusted vendor relationships replaced direct network attacks as the dominant breach vector. Professional services attacks up 39% YoY and 162% over five years.
Third-party vendor compromise doubled as a share of all breaches. Wealth managers targeted by name. A CPA firm paid $60K for an 18-month notification delay. The subprocessor problem reached enforcement stage.
