Professional & Business Services Security

IT Security Audit Services for Professional & Business Services

Protect client confidences, stop wire fraud, and prove to clients that their data is safe with you. Independent audits and testing by CISA-certified auditors, scoped to your firm.

The Email That Costs Firms the Most

Business email compromise does not need malware. It needs one convincing message on a busy afternoon. Here are the four tells, and what catches each one.

ExampleInbox
FromSarah Klein <sarah.klein@marlowreed-law.co>
ToJames Ortiz
SubjectURGENT: Updated wire instructions for today’s closing
Hi James,
Our bank changed this week, so please use the new account below for today’s closing and confirm once it is sent.
Account ending 4417 · Routing ending 0219
I am in meetings all afternoon, so email only, please.
Thanks,
Sarah
Illustrative example. Names, domains, and account numbers are fictional.
  1. 1

    A lookalike domain

    marlowreed-law.co is not marlowreed.com. Email authentication and impersonation settings can flag it before anyone reads it.
    Microsoft 365 security audit
  2. 2

    Manufactured urgency

    Time pressure is the attacker’s main tool. Phishing simulations show who acts before they check.
    Social engineering assessment
  3. 3

    Changed payment details

    Any change to wire instructions should be confirmed by phone, using a number you already have. We test whether that procedure holds.
    Social engineering assessment
  4. 4

    A blocked callback

    Asking you not to call removes the one check that would expose the scam. If the real partner’s mailbox were taken over, even the domain would look right; multi-factor authentication and sign-in policies stop that.
    Microsoft 365 security audit

Security Challenges Facing Professional & Business Services Organizations

Professional services firms hold their clients’ most sensitive information: privileged communications, deal terms, tax records, and business strategies. A breach does not only expose your firm; it compromises every client who trusted you. Attackers know that time-pressured professionals, large wire transfers, and email-based workflows make these firms easier targets than their clients.

Two professionals reviewing client documents at a desk, the confidential work firms are trusted to protect

Key Threats

  • Business email compromise (BEC) targeting wire transfers and deal closings
  • Client data exfiltration by nation-state actors
  • Insider threats from departing employees
  • Ransomware disrupting billable operations
  • Phishing attacks exploiting time-pressured professionals
  • Supply chain risks from practice management and document platforms

Sensitive Data at Risk

  • Attorney-client privileged communications
  • M&A deal data
  • Tax records and financial statements
  • Employee and candidate PII
  • Trade secrets
  • Intellectual property
  • Client business strategies

Requirements We Help You Meet

ABA guidance on safeguarding client information, state bar data security rules, the FTC Safeguards Rule and IRS Publication 4557 for tax and accounting firms, CCPA/CPRA, GDPR, SEC requirements for registered advisors, and the security terms in client contracts and outside counsel guidelines. We audit against the Safeguards Rule directly and map findings to the rest.

Built for organizations like yours

  • Law firms
  • Accounting and tax practices
  • Management consultancies
  • Staffing agencies
  • Real estate firms
Client questionnaire in your inbox, or a wire you were not sure about? Tell a certified auditor which, and we will start with what protects your clients first.
Talk to an Auditor or call (714) 794-5210

Recommended Security Services for Professional & Business Services

Most firms start with Microsoft 365, because email, documents, and identities all live there, then add a social engineering test aimed at the payment steps above.

Common starting point

Microsoft 365 Security Audit

Most firms run their email, documents, and identities in Microsoft 365, which makes its settings some of your most important security controls. We review Entra ID, conditional access, email security, sharing, and data loss prevention to close the gaps behind account takeover and business email compromise.

Microsoft 365 security audit

Social Engineering Assessment

Wire fraud and closing scams start with a convincing email or phone call to a busy professional. Through phishing simulations, vishing, and pretexting, we test whether your people and payment procedures stop the request before money moves.

Social engineering assessment

IT Security Audit

A full review of your servers, cloud services, endpoints, identity, and IT general controls, benchmarked against CIS and NIST standards. It is the clearest way to see whether client data is protected the way you assume.

IT security audit

Auditor Opinion Letter

Clients increasingly send security questionnaires before they share data. An Auditor Opinion Letter and Secure Seal show clients and prospects that an independent certified auditor has tested your controls.

Auditor Opinion Letter

Ransomware Readiness Audit

Ransomware stops billable work and can expose client files. We verify that your backups are isolated and immutable and that your document and practice management systems can actually be restored, with measured recovery times.

Ransomware readiness audit

Compliance Audit

Tax preparers and accounting firms are covered by the FTC Safeguards Rule, and many firms answer to client and regulatory requirements beyond it. We assess your security program and controls against the rules that apply to you.

Compliance audit

Built for Your Firm and Your Clients

A ten-person law office, a regional accounting firm, and a national consultancy face very different risks. We do not sell a fixed package. We scope each engagement around your systems, your client obligations, and your team, and deliver findings that are specific and actionable, not a generic checklist.

Scoped to Your Environment

Microsoft 365, document and practice management systems, client portals, remote work, and the tools your IT provider manages. We test what you actually run.

Mapped to Your Client Obligations

Findings tied to bar rules, the FTC Safeguards Rule, client contracts, and the other requirements that apply to you, so you can answer client questionnaires with evidence.

Proof Your Clients Can Accept

An Auditor Opinion Letter and Secure Seal answer client security questionnaires without sending them your full technical report.

IT Security Audit Services for Professional & Business Services

How We Help Professional & Business Services Organizations

Cybercriminals increasingly target law firms, accounting practices, and consultancies because of the client data they hold. M&A deal information, litigation strategy, tax records, and employee data are concentrated in a few systems and handled by busy people, which makes these firms attractive targets for business email compromise, ransomware, and data theft. Our role is to give you an independent, evidence-based view of where you stand, a prioritized plan to close the gaps, and proof you can share with clients.

How We Protect Client Confidences

We start with where client information lives and moves: Microsoft 365, the document management system, file sharing with clients, and the payment steps around closings. We review those settings, test whether your people and payment procedures hold up against a realistic closing scam, and deliver a risk-rated report mapped to the FTC Safeguards Rule and the other obligations that apply to your firm, with clear steps to fix each finding. Where clients ask for proof, an Auditor Opinion Letter documents the result, and our support continues for three months after delivery.

Which Service Should You Start With?

Most organizations begin with one engagement and build from there. Find the situation closest to yours:

Not sure? A free consultation will help you decide.

Why Choose Altius IT for Professional Services Security

Altius IT's certified auditors understand professional services firms, where client confidentiality is paramount and billable-hour pressure creates security blind spots, and we tailor every engagement to them. Our 50-point security process evaluates document management systems, email security, client portal protections, and access controls, helping your firm demonstrate security due diligence to clients and regulators.

Professional & Business Services Security, Explained

Firms hold privileged communications, deal terms, and tax records for many clients at once, and clients increasingly send security questionnaires before sharing data. An independent audit finds the gaps before attackers do and gives you evidence, such as an Auditor Opinion Letter, that you can share with clients.

Firms that prepare tax returns are covered by the FTC Safeguards Rule, which requires a written information security program with specific safeguards, and IRS Publication 4557 explains how those obligations apply to tax professionals. Our compliance audit assesses your program and controls against the Safeguards Rule.

Not necessarily. Misconfigured identity, sharing, and email settings leave firms open to phishing, account takeover, and business email compromise. Our Microsoft 365 security audit reviews Entra ID, conditional access, email security, data loss prevention, and your tenant configuration.

Other Industries We Serve

Altius IT provides certified IT security audit services across multiple industry sectors.

View all industries →