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Accounting Firm IT Security: Protecting Client Financial Data

July 11, 2026 8 min read

Accounting firms hold financial data, tax IDs, and banking information for hundreds of clients. The FTC Safeguards Rule now requires a formal information security program for all financial institutions.

Accounting firms hold some of the most valuable data a cybercriminal can access. The IRS, FTC, and state CPA boards hold accounting firms accountable for protecting client data through a Written Information Security Program (WISP).

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HIPAA Compliance Checklist for Healthcare

Complete HIPAA Security Rule compliance checklist with 2026 updates.

FTC Safeguards Rule Requirements

The FTC Safeguards Rule requires accounting firms to designate a qualified security officer, conduct risk assessments, implement safeguards to control identified risks, train employees, monitor controls, and oversee service providers with access to client data. Failure to comply risks FTC enforcement and potential IRS PTIN revocation.

Tax Software Security

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Your tax preparation software contains your most sensitive client data. Requirements include MFA on all access, encrypted storage (cloud or on-premises server), role-based access (not all staff need access to all returns), and session timeouts for idle sessions.

Client Portal Security

Sharing tax documents via email violates your WISP. Use encrypted client portals (ShareFile, SmartVault, or your tax software's built-in portal) for all document sharing.

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