New Phishing Scam Targets EFINs: IRS Alerts Tax Professionals
Published: Oct 10, 2025
Tax pros—stay alert! Cybercriminals are using fake IRS emails about EFINs to spread malware. Don’t click suspicious links or share info. Report scams to phishing@irs.gov

Tax Pros Urged to Stay Vigilant Against Email Scams Involving Electronic Filing Identification Numbers
Cybercriminals are targeting tax professionals with a new phishing scam that focuses on Electronic Filing Identification Numbers (EFINs). Fraudulent emails falsely claim that EFIN-linked tax returns require immediate review, urging recipients to download a fake “IRS Transcript Summary of Data (SOD) Viewer.” Downloading or clicking links in these emails may install harmful malware on your device.
How to Protect Yourself
- Avoid clicking on unknown or suspicious links.
- Verify the legitimacy of any requests for information.
- Never share sensitive information, such as EFINs, via email or fax.
- Report suspicious emails to phishing@irs.gov.
- If you suspect IRS impersonation, notify the Treasury Inspector General for Tax Administration (TIGTA).
Stay Informed
Topics: