Cybersecurity & Cyber Liability Risks for Detroit-Area Accounting Firms During Tax Season
It’s March in Metro Detroit.
Accounting teams are buried.
Bookkeepers are juggling last-minute requests.
Deadlines are stacked.
Emails are moving faster than anyone can comfortably keep up with.
Everyone’s head is down, focused on getting through tax season.
That’s not news to you.
But it’s not news to hackers either.
Security researchers consistently see a sharp increase in phishing and impersonation attacks against accounting and tax firms during tax season. March, in particular, brings a noticeable spike in tax-themed scam emails—messages designed to blend in with everyday business communication when firms are under the most pressure.
That isn’t coincidence.
That’s timing.
Here’s what’s really happening—and how Detroit-area firms can reduce cyber liability without slowing busy season down.
The Stressed Supply Chain Around Accounting Firms
Here’s what many firms miss:
Hackers aren’t only targeting accounting firms themselves.
They’re targeting the pressure and speed surrounding them—clients, vendors, seasonal staff, and leadership all moving faster than usual.
During tax season:
- Clients rush to send sensitive tax documents
- Staff skip normal verification steps to keep work moving
- “Just send me the file” replaces usual caution
- Double-checks get skipped because everyone is slammed
The entire ecosystem speeds up.
And speed is where cyber liability exposure quietly grows.
Hackers don’t look for calm, methodical environments.
They look for busy ones.
March is busy.
What Tax-Season Cyber Attacks Actually Look Like
This isn’t a dramatic hacking scene.
It’s an email that looks exactly like everything else in your inbox.
Common examples we see in accounting firms include:
- An email from “your accountant” asking a client to resend W-2s
- A message from a vendor claiming their banking details changed
- A DocuSign request for a tax form that “needs to be signed today”
- An urgent message from “leadership” requesting immediate help
None of these feel suspicious during March.
They feel routine.
That’s why they work.
Why Busy Accounting Professionals Get Caught
This isn’t about carelessness or lack of intelligence.
It’s about being human.
When inboxes are full and deadlines are tight, people skim instead of reading carefully. They assume. They react.
Scammers design messages specifically for professionals who are moving too fast to notice the one thing that’s off.
They don’t need recklessness.
They just need pressure.
And tax season provides exactly that.
Four Simple Ways Detroit Accounting Firms Can Reduce Busy-Season Cyber Liability
The good news? Reducing cyber liability during tax season doesn’t require a massive technology overhaul.
Small, intentional habits make a measurable difference.
1. Verify payment changes by phone
If an email claims a vendor’s banking information has changed, don’t reply to the message.
Call a phone number you already trust and confirm verbally.
This single step prevents some of the most expensive business email compromise (BEC) losses we see.
2. Slow down requests for sensitive tax information
Urgency should be a signal to pause—not rush.
If someone requests W-2s, tax returns, or financial documents “right now,” take a moment to verify first.
Legitimate senders won’t mind a short delay.
Scammers will.
3. Confirm urgent requests through a second channel
Any message labeled “urgent” should be verified another way.
A quick phone call, text, or internal message can stop a bad decision before it becomes a reportable incident.
Real urgency survives a two-minute check.
Fake urgency doesn’t.
4. Give your team permission to slow down
Remind your staff that tax season is prime time for scams.
Let them know it’s acceptable to pause, double-check, and ask questions when something feels off.
That small permission shift dramatically reduces cyber liability exposure.
The Takeaway for Metro Detroit Accounting Firms
Tax season is stressful enough without adding a cyber incident to the list.
The attacks that appear in March aren’t especially clever.
They’re just well-timed.
They rely on:
- People being rushed
- Assumptions instead of verification
- Everyone trying to power through busy season
You don’t need to overhaul your systems overnight.
You just need to slow down when things feel urgent—and verify when something doesn’t quite sit right.
Often, that’s enough.
A Quick Busy-Season Cyber Sanity Check
Your firm may already have strong habits in place—and if so, that’s excellent.
But if tax season pushes your team into reactive mode, or you’re unsure how urgent requests are handled under pressure, a quick review can be helpful.
I recommend a free 10-minute Discovery Call.
No scare tactics.
No pressure.
Just a calm, practical look at whether small habit changes could significantly reduce cyber liability during tax season.
If this doesn’t sound like your firm, feel free to forward it to one that’s still running on hope.
