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Prakriti Adak

October 16, 2026

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Phishing Defence for Accountants Handling Tax Portals and Bank Logins

Some of the most important information a business owns is the information that is handled by the accountants. The attackers might target tax portal login details, bank login details, GST details, client documents, payment details and financial details. That is why phishing defence for accountants handling tax portals and bank logins should be treated as a daily security practice.

A phishing attack often looks ordinary. You might get an e-mail notification that you need to pay GST, a bank security alert, be suspended on your account or get a document for approval. Anything that requires a click can take you to an impostor login site that will trick you into entering your password or OTP.

Why Accountants are Attractive Targets

Attackers also exploit deadlines. During filing periods, accountants are more likely to open urgent messages without checking them carefully. A message claiming that your tax account will be blocked today can create the panic an attacker needs.

Common Phishing Attacks Accountants Should Watch

Phishing does not always look like an obvious scam. Watch for:

Fake GST or income tax notices asking you to verify account details
Alerts from banks saying that your account or bank net banking access has been suspended
E-fake/invoice, e-way bill or payment notifications with malicious links
Messages pretending to be clients who urgently request a bank account change.
Fake emails appearing as if from your client that are actually used to try to convince you to change your bank account because of an emergency.
Login pages that closely copy trusted government or banking websites
The attacker contacts the victim by phone or message and has at least a basic profile of the profile

It’s about creating urgency or fear, and then pushing you towards a risky behaviour, generally the same.

How to Verify a Suspicious Message

Be sure to include the complete e-mail address instead of just the one in the “of” line. The message looks as if it’s been sent by a familiar organisation, but might have come from a non-related domain. Never check the contents of links. When using a computer, hover over the link while pointing the cursor and check where the link is taking you. Stick out of the way from the domain if it is not familiar to you, does not sound like a name, or is a short link. Be aware of any pressure phrases: e.g. ‘final warning’, ‘account closed’, or ‘payment is due now.’

These are phrases to discourage careful thinking. Most importantly, access the portal independently. Use a saved official bookmark or type the known website address instead of following a message link.

Protect Tax Portal and Banking Credentials

Have a unique and secure password for each account that is important. Where possible, use multi-factor authentication. MFA is an added layer of security if a password is compromised, and it should not be approved for a logon that you didn’t expect, nor should you be given an OTP. Make sure your email account is secured tightly; there’s a chance that another account could be compromised if your email address is.

Always enable MFA, don’t ignore recovery methods and ensure there is no suspicious login activity. Do not give others OTPs, PINs, passwords, security codes, banking information or banking codes via email, on WhatsApp, SMS or by phone.

Build a Safer Accounting Workflow

Give employees individual accounts wherever possible and provide only the access they need. Avoid sharing one master login because it makes accountability and incident investigation harder. Back up important accounting records regularly. Store backups off-site, as data on a backup unit would not be a problem should it get infected.

Set up a payment change verification rule. Contact the client or vendor using a phone number known to you to verify any changes made to bank details if the person has suddenly asked you to change bank details.

What to Do If You Clicked a Phishing Link

If you entered a password, change it soon using the authentic website. Replace it in all other locations where it was reused. If it is possible that the banking data was exposed, then get in touch with your bank via the official line. If you shared an OTP or authorised a login you didn’t expect, assume that the account is possibly compromised, and change the password.

Check for recent activity, cancel any suspicious logins as far as possible and report it. If you are faced with such a situation, record the incident and adhere to the procedures required for a business incident response crisis.

Phishing Defence Checklist for Accountants

Before accessing a tax portal, bank account, or financial document, ask:

Did I expect this message?
Is the sender address genuine?
Does the link lead to the correct official domain?
Is the message creating unnecessary urgency?
Am I being asked for a password, OTP, PIN, or other secret?
Can I verify the request independently?
Am I using a unique password and MFA?
Are my browser and software updated?

Conclusion

But cybersecurity specialists are not required for the accountant to lower phishing risks. The need for consistent practices with verification of unexpected messages, unique passwords, MFA, secure email accounts, limited access, system updates, and ensuring all payment and credential requests are completed independently.

Organised accounting processes are also very significant in good financial management. By consolidating all the above functionalities in one platform, swipe simplifies typical business processes, eliminating manual efforts in today’s environment.

Reflecting on all your billing & accounting solutions? Get to know Swipe and easily manage all your day-to-day GST and invoicing needs.

FAQs

1. What is phishing under accounting?

Phishing involves a scam in which attackers pose as reputable organisations or individuals to trick investors into providing account details, financial information or other personal information.

2. What are the ways an accountant can recognise a fake tax portal email?

Verify the sender's complete email address, scrutinise links, watch for unexpected domains or rushed or grammatically incorrect wording, and visit the official email address yourself.

3. Should accountants share OTPs with bank or tax support staff?

No. OTPs (one-time passwords), passwords, PINs, and security codes should never be given to someone who says they're from a ten-company, bank, tax office or tech firm.

4. If I enter my password on a “phishing” site, what do I do now?

If the site information has been compromised, change the password immediately as per the site's procedures.

5. What can be done by the accounting firms to increase phishing security?

Ensure MFA is used; ensure staff are kept properly trained; ensure unique passwords are used; ensure software is up to date; ensure sensitive requests are backed up and verified separately.

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