Financial Data Security — Encryption, Client Portals, IRS Compliance | Global Computer Support
Industries → Accounting

Your Clients Trust You With Their Most Sensitive Financial Data. Is It Actually Secure?

Tax returns, bank statements, Social Security numbers, payroll records — accounting firms hold the most valuable data on the dark web. A single breach exposes your clients to identity theft and your firm to lawsuits, regulatory penalties, and destroyed trust that takes a career to rebuild.

Why Accounting Firms Are Targeted

Industry Data
Avg breach cost (financial services)$5.90M
Tax return value on dark web$1,000+ each
SSN + financial data value$50+ per record
IRS penalty for non-compliance$100K+ per year
Firms hit by phishing annually1 in 3
GCS accounting firm breaches0 (27 years)
Encryption for Financial Files

Every Tax Return, Bank Statement, and Financial Record — Encrypted

The IRS Written Information Security Plan (WISP) requirement and FTC Safeguards Rule both mandate encryption for client financial data. We implement encryption at every layer — files at rest, data in transit, email attachments, and backup copies — so your client data is unreadable even if intercepted or stolen.

File-Level Encryption

AES-256 encryption on all client data files — tax returns, financial statements, and work papers encrypted at rest on servers and workstations

Email Encryption

TLS enforced on all email, M365 Message Encryption for client-facing messages, and DLP rules auto-encrypting emails containing SSNs or financial data

Transit Encryption

TLS 1.2+ on all network connections — VPN, cloud services, client portals, and file transfers always encrypted in transit

Device Encryption

BitLocker on every workstation and laptop — lost or stolen devices are unreadable without authentication

Encryption — Managed Status
Files at RestAES-256
Email (in transit)TLS 1.2+
Email (client-facing)M365 OME
Endpoint DrivesBitLocker 100%
Backup EncryptionAES-256
Client PortalTLS 1.3
DLP Auto-Encrypt Rules6 Active
Secure Client Portals

Stop Emailing Tax Returns. Start Using a Secure Portal.

Email is the least secure way to exchange financial documents with clients. We deploy and manage secure client portals that provide encrypted document exchange, audit trails, and a professional experience your clients will appreciate.

Encrypted Upload/Download

Clients upload W-2s, 1099s, and financial documents through an encrypted portal — not email attachments that sit unprotected in inboxes forever.

Client-Level Access

Each client sees only their documents. No cross-client visibility. MFA required for portal access. Session timeouts prevent abandoned sessions.

Audit Trail

Every upload, download, and view logged with timestamp and user identity — proving chain of custody for sensitive financial documents.

Access Controls & Permissions

Only the Right People See the Right Data — Always

Not every staff member needs access to every client file. A junior bookkeeper should not have access to the managing partner's personal tax return. We implement layered access controls ensuring each team member sees only the data required for their role — and every access is logged.

Role-Based Access

Partners, managers, seniors, staff — each role gets specific data access permissions

Client-Level Controls

Restrict specific client files to assigned team members only

Audit Logging

Every file access, email sent, and document download logged with user and timestamp

DLP Policies

Prevent SSN and financial data from being emailed externally or copied to USB

Offboarding Protocol

Immediate access revocation when employees depart — zero residual access

Sensitivity Labels

Auto-classification of financial documents with appropriate handling restrictions

Access Controls — Status

All Systems
Access ModelRole-Based
Client-Level RestrictionsEnforced
File Access LoggingAll Events
DLP Policies8 Rules
USB RestrictionsBlocked
Sensitivity LabelsDeployed
Offboarding SLA<1 Hour
IRS Cybersecurity Requirements

The IRS Now Requires a Written Security Plan. We Build and Maintain Yours.

Since 2022, the IRS requires every tax professional to have a Written Information Security Plan (WISP) under the FTC Safeguards Rule. This is not optional — it is a legal requirement for maintaining your PTIN. We implement every control the WISP requires and maintain the documentation the IRS expects to see.

WISP Documentation

Complete Written Information Security Plan tailored to your firm — not a generic template. Covers risk assessment, employee training, incident response, and technical controls.

FTC Safeguards Rule Compliance

All nine elements of the updated Safeguards Rule implemented — designated coordinator, risk assessment, access controls, encryption, incident response, and vendor management.

IRS Publication 4557

Implementation of all IRS-recommended security practices from Publication 4557 — the definitive guide for tax preparers protecting client data.

IRS Compliance — Status
WISP DocumentCurrent
FTC Safeguards RuleAll 9 Elements
Pub 4557 ControlsImplemented
Designated CoordinatorAssigned
Risk AssessmentAnnual
Employee TrainingComplete
Incident Response PlanTested
Last WISP ReviewQ1 2026
Multi-Factor Authentication

Passwords Alone Are Not Enough — MFA Stops 99.9% of Account Attacks

The IRS, AICPA, and FTC all require multi-factor authentication for accessing client financial data. A stolen password should never be enough to access tax returns, bank statements, or accounting files. We enforce MFA on every system, every user, every login — with no exceptions.

Microsoft Authenticator

Push notification MFA for M365, VPN, and firm applications — fast, secure, and phishing-resistant with number matching

Conditional Access

Policies that evaluate risk before granting access — known device? Usual location? Compliant endpoint? If not, additional verification required.

Tax Software MFA

MFA enforced on Drake, Lacerte, ProSeries, and all tax preparation platforms — preventing unauthorized access to client returns

MFA — Enforcement Status

All Users
M365 / Email100% Enforced
VPN / Remote Access100% Enforced
Tax Software100% Enforced
Client Portal Admin100% Enforced
QuickBooks / Accounting100% Enforced
Conditional Access Policies10 Active
Accounts Without MFA0

How secure is your client financial data — really?

Our free financial data security assessment evaluates your encryption, client portal security, access controls, IRS WISP compliance, and MFA enforcement — and delivers a scored report showing exactly where your firm is protected and where client data is exposed.

27 years. Zero accounting firm breaches. IRS WISP compliant.