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Accountant got an email from the 'Tax Office', clicked a weird link — could the bank account have been compromised?

MMerve A***Member
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#1

My accountant told me he got an email from the 'Tax Office' saying he had tax debt and needed to click a form to update his bank account. He clicked it, went to some sketchy form page, and entered his bank username and password. Minutes later, he got another email telling him to change his bank password.

Now the accountant is panicking he checked if any money was withdrawn but the balance looks normal for now. But will the bank withdraw money at any moment? Or what else will those who used that form do?

I reported it to the bank immediately but they make you feel like it's your fault. I don't know what to tell the accountant, he's afraid of losing his job. How can we restrict bank access to cellular networks?

OOsman B***MemberCommunity member
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Most Helpful#2

Things to do immediately: 1) File an 'Unauthorized Account Access' report with the bank and report fraudulent transactions, 2) Change all bank account passwords, 3) Check the Connected Devices and Session sections in online banking, remove any unknown devices, 4) Check the last 30 days of transactions in the bank app, note any suspicious transactions, 5) Virus scan the accountant's computer and phone (could be malware harvesting more credentials), 6) Change all access passwords for the accounting system, 7) Enable two-factor authentication in the bank app (if supported), 8) Check mail filtering rules on the company's email server — see if similar scam emails have arrived.

EEbru K***Member
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#3

did he give out the bank password?? that's really bad. change everything immediately, cancel the debit card. the bank often reverses this but there's a time limit. also tell the accountant stop clicking these kinds of emails...

CCeren B***Member
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#4

In phishing emails, the sender email address is usually fake. Check the mail header: Return-Path, SPF, DKIM, DMARC records. If the domain isn't verified, it's almost certainly phishing. The accountant's computer might have a keylogger, it's recommended to access the bank from another device. Check if the bank has account limits, if transaction bounds can be set.

UUfuk B***MemberCommunity member
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#5

The Tax Office never sends links via email bro... clients not reading emails is always a problem. Tell the accountant too, avoid these emails, always go directly to the site. And now what to do: check with the bank management company (Visa Mastercard), is there a fraud dept... thing for credit freeze? Yes, freeze it then unfreeze...

edit: typed from phone, sorry for typos.

RRıdvan K***MemberCommunity member
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#6

Email filtering and verification mechanisms are critical in corporate environments. Recommendations: 1) Mandate SPF DKIM, DMARC authentication setup, 2) Provide email security training (phishing awareness), 3) Implement multi-factor authentication for all company accounts 4) Establish a clear channel with the bank — access the computer from a different network or switch to a phone call. 5) Conduct a risk assessment for the entire structure.

TTülay Ç***MemberCommunity member
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#7

Got an email from the Tax Office yaaa 😅 Stuff like this only happens in movies of course... Interesting. Anyway the accountant wont get fired right, this is also a learning opportunity. Be more careful next time...

SSefaNew member
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#8

If youre going this route sort this out first. I mean if you dont write this down from the start, it leads to arguments later.

The real issue isnt the number, but what its based on... I mean good luck with that.

TTolga G***Veteran
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#9

i feel the same way then solutions that work at a small scale collapse when you grow; I learned this late.

if I were you, Id go this route.

AAslı A***MemberCommunity member
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#10

I've been down this road, let me tell you. Start with a small trial; don't commit to everything at once.

Most time waste accumulates in tasks waiting for approval.

CCeren K***MemberCommunity member
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#11

Three different views emerged they all complement each other. If you don't write this down from the start, it leads to arguments later.

HHasanMember
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#12

I didn't know that. Forgotten test environments are more often the entry point than live systems.

Security isn't absolute; it's about making attacks not worth the effort. Of course, it varies if your situation is different.

AAslı Ç***Member
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Doki · KVKK compliance consulting · 2026

#13

i was thinking the same thing. everything goes well for the first three months; problems arise in the fourth.

good luck with that.

RReyhan K***Member
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#14

Thanks, that was the answer I was looking for. Trying to do this alone is the most expensive way.

If I were you I'd go this route.

FFatma U***Member
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#15

I didn't know that.

SSılaMember
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#16

I've been dealing with this for a long time. Trying to do this alone is the most expensive way.

Hope this helps.

EEmrahMember
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#17

Following. The harder it is to reverse a decision, the slower you should make it.

AAli R***Expert
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#18

This approach has a cost, which isn't discussed. Start with a small trial; don't commit to everything at once.

Start with a small trial; don't commit to everything at once. If you have questions, write them; I'll answer as best I can.

SSerkan E***Member
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#19

Three different views emerged, they all complement each other. Trying to do this alone is the most expensive way.

Good luck with that.

FFatih K***Expert
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Doki · Penetration test · 2025

#20

Thanks for writing this, that's the right way. Taking measures without an inventory leaves doors you haven't seen open.

That's all, sorry if I went on too long.

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