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Law Firm Cybersecurity

Law firms are the most targeted businesses
for wire fraud in America.

Your firm handles trust accounts, client funds, real estate closings, and sensitive communications — everything an attacker needs to commit fraud. We protect law firms specifically. Not generic IT security. Cybersecurity built around how law firms get attacked.

One compromised mailbox at a closing can redirect six or seven figures in client funds within hours.
Based in Connecticut Law firm IR experience Same-day response
Real Incidents We Have Handled Law Firm Cases
$7,000,000
CT law firm. Attacker inside Microsoft 365 for 23 days. Lookalike domain registered. Wire fraud attempt initiated against business partner. Contained same day.
BEC - Wire Fraud
$340,000+
Real estate closing. Attacker intercepted email chain between firm and title company. Wiring instructions replaced with fraudulent account. Fraud identified before full transfer.
Closing Wire Fraud
2 Weeks
CT law firm. Attacker operated inside partner mailbox for 14 days. Seven hidden inbox rules created. External partners contacted via lookalike domain. Full tenant secured.
Account Takeover
30 Min
Weekend compromise discovered Monday morning. Attorney called directly. Account locked, sessions revoked, environment secured before first client email of the day.
Emergency Response
$7M+Wire Fraud Prevented
<30 minInitial Response Goal
Same DayContainment on Active Cases
DirectNo Ticket Queue. No Handoffs.
Why Law Firms

Your firm is a high-value target by design.

Attackers do not pick law firms at random. They target them because of what law firms hold and how they operate. Understanding why you are targeted is the first step to protecting against it.

🏠

Real Estate Closings

Wire transfers for closings are high-value, time-pressured, and conducted almost entirely over email. Attackers intercept the conversation, replace the wiring instructions, and are gone before the buyer realizes the money went to the wrong account. A single closing can represent six to seven figures of client funds.

⚖️

Trust Accounts

IOLTA accounts and client trust funds are a direct target. A compromised mailbox gives an attacker visibility into which funds are held, when disbursements are scheduled, and who the right people are to impersonate in a fraudulent request. Bar association rules make the exposure worse — attorneys can face personal liability.

🔒

Client Confidentiality

Privileged communications, settlement negotiations, litigation strategy, and client financial data are all stored in your Microsoft 365 environment. A breach does not just cost money. It can trigger breach notification obligations, malpractice exposure, and bar discipline if client data is compromised.

👥

Trusted Relationships

Law firms operate on trust with clients, opposing counsel, banks, and title companies. Attackers exploit those relationships by impersonating attorneys, partners, and staff in ways that are hard to detect. Your reputation is the practice. One successful BEC attack can destroy client relationships that took years to build.

Time Pressure

Closings, settlements, and court deadlines create urgency that attackers deliberately exploit. When a closing is scheduled for tomorrow and wire instructions change this afternoon, partners and staff do not always have time to verify through a separate channel. The urgency is part of the attack.

💻

Microsoft 365 Gaps

Most law firm Microsoft 365 environments were set up quickly by an IT provider and never hardened for security. Legacy authentication still enabled, too many global admins, no inbox rule monitoring, no audit logging. These are the exact gaps attackers look for when targeting professional services firms.

Case Study

$7 million wire fraud attempt. 23-day intrusion. Contained the same day.

This is a real engagement. A Connecticut law firm called us after a business partner flagged a suspicious wire transfer request. What we found when we got inside was worse than anyone expected.

1
Day 1 of intrusion
Initial compromise via phishing
Partner clicked a phishing link. Credentials harvested. Attacker authenticated from overseas IP address within minutes.
2
Days 1 to 23
Silent reconnaissance
Attacker read emails for 23 days. Learned financial relationships, identified key business partners, and monitored wire transfer conversations. Hidden inbox rules created to intercept replies.
3
Day 23
Lookalike domain registered
Attacker registered a typo-squat domain one character off from the firm name. Used it to contact a business partner directly to initiate a $7 million fraudulent wire transfer.
4
Day 23 - Discovery
Business partner flags the request
The business partner noticed the domain was slightly different and called the firm directly. The firm called us within the hour.
5
Same day as discovery
Full containment
All accounts secured, active sessions revoked, malicious inbox rules removed, lookalike domain blocked, six accounts remediated. Full forensic report delivered within 11 days.
Wire Fraud Prevented
$7,000,000
The fraudulent transfer was never completed. The business partner's call came in time.
Attacker Dwell Time
23 Days
The firm had no idea anyone else was inside the environment reading their emails.
Time to Full Containment
Same Day
From the first call to fully secured environment. Six accounts remediated before end of business.
How It Could Have Been Prevented
Inbox rule alerting, sign-in anomaly detection, and MFA enforcement with Conditional Access would have flagged the intrusion on day one instead of day 23.
What We Do

Three ways we protect your firm.

⚠️ Emergency Response

Active Incident Response

If something is happening right now — a compromised account, a suspicious wire request, a phishing click — call us. We contain it fast, investigate the full scope, and secure the environment the same day.

  • Account takeover containment
  • Business email compromise response
  • Wire fraud investigation
  • Mailbox forensics and rule removal
  • Executive incident briefing
📊 Assessment

Microsoft 365 Security Review

Before an incident forces the question, find out exactly where your firm is exposed. We review your entire Microsoft 365 environment and deliver a written report with prioritized remediation steps.

  • Identity and access gap review
  • Inbox rule and forwarding audit
  • Conditional access assessment
  • Privileged account review
  • Written report and briefing
🛡️ Ongoing Protection

Managed Detection and Response

Continuous monitoring of your Microsoft 365 environment, identities, and endpoints. If something suspicious happens, we see it and respond — not a helpdesk, not a ticket queue, not next business day.

  • 24/7 identity threat monitoring
  • Inbox rule and sign-in alerting
  • Endpoint detection coverage
  • Phishing simulation and training
  • Direct engineer escalation
Why Black Tower Cyber

Not a managed IT company. A dedicated cybersecurity practice.

Direct You reach the security engineer. Not a helpdesk or account manager.
Real IR Every case study on this site is a real engagement. Not a hypothetical.
Same Day Active incidents get same-day containment. Hours matter after a compromise.
Written Every engagement ends with a written report. Supports insurance, ethics counsel, and bar inquiries.

Already have an IT provider or MSP? We are not a replacement. We are the security layer most IT companies do not provide. When an incident happens, your IT team focuses on keeping systems running. We focus on containment, forensics, and making sure the attacker is actually gone — not just the password reset and close the ticket.

What Law Firm Clients Say

Trusted by Firms That Cannot Afford to Get It Wrong.

Firms that handle client money, sensitive data, and high-stakes transactions.

"

We had a situation where a partner's email account was accessed without authorization over a weekend. Eric was reachable within the hour, walked us through exactly what happened, and had the account secured before Monday morning. For a firm handling active litigation, that kind of response time is not optional. It is essential.

Jonathan L. - Attorney, Larkin & Associates, LLC
"

After a phishing incident that nearly compromised a client wire transfer, we needed someone who understood both the technical side and the urgency. Eric contained it fast, explained every step clearly, and helped us put the right controls in place so it would not happen again. I would recommend him to any firm that takes client trust seriously.

Jay M. - Attorney, Merritt Law Group

Is your firm protected against wire fraud?

Most law firms are not. A 30-minute free consultation will show you exactly where your exposure is — before an attacker finds it first.

Speak to a Cybersecurity Expert Now Book a Free Security Review
Free initial consultation. Direct response. Serving law firms nationwide.