Fraudsters have been bombarding students at Cambridge University with fake emails telling them they have a tax refund due.
The emails promise the students they are owed the money, however they're really an attempt to get personal information.
HMRC says it's had thousands of fraud reports in the last few weeks with a particularly high number from Cambridge students and says it would never ask for details in an email.
The scammers are using seemingly legitimate university email addresses to appear convincing - such as "@uc.ac.uk".
They may appear to suggest to students that their university has been informed that they are due a tax rebate from HMRC.
Fraudulent emails and texts will regularly include links which take students to websites where their information can be stolen.
HMRC says it has used cutting-edge technology to block half a billion phishing emails since 2016.
Here are HMRC's tips to avoid being caught out by "phishing" scam emails:
- Recognise the signs - genuine organisations like banks and HMRC will never contact you out of the blue to ask for your Pin, password or bank details.
- Stay safe. Do not give out private information, reply to text messages, download attachments or click on links in emails you were not expecting.
- Take action. Forward suspicious emails claiming to be from HMRC to email@example.com and texts to 60599.
- If you suffer financial loss, contact Action Fraud on 0300 123 2040 or use its online fraud reporting tool.
- Check gov.uk for information on how to avoid and report scams and recognise genuine HMRC contact