Compromised Tax File Number
Your Tax File Number (TFN) is used to identify you in your dealings with the ATO; it can also be used to lodge tax returns and other tax forms.
If an unauthorised third party has, or potentially has the ability to access your TFN and personal information they may be committing Identity Fraud.
If you know or suspect someone has stolen your TFN or is using your tax-related information illegally, you can phone the ATO on 1800 467 033, Monday to Friday between 8.00am and 6.00pm.