The trade association, which represents banks and building societies, found that just over half of those targeted had shared personal information or made a payment to a fraudster.
Read on to find out more about how impersonation scams work and for advice on staying safe.
What are impersonation scams?
Impersonation scams are common - UK Finance says it received 45,000 reports in 2022, with losses of £178m.
For example, we often receive reports of fake HMRC emails that ask recipients to update their account details to pay tax or receive a refund.
These scams are designed to obtain your personal and financial details, either to scam you now or further down the line.
Criminals often piggyback onto financial events, such as the end of the tax year or deadlines for cost-of-living support payments.
Find out more:Young adults most confident of spotting scams
UK Finance's research found that young adults were the group most confident of spotting an impersonation scam.
90% of respondents aged 18-24 said they were confident they would be able to spot a fake request for personal information online - but complacency could put people at risk of falling victim.
Only 27% of young adults said they always take steps to check if an organisation or person can be trusted if they receive a message out of the blue.
This figure rises to 60% of over 55s, who were far more cautious about unexpected messages.
Find out more:Signs of an impersonation scam
How to stay safe from impersonation scams
Phone scams: Email scams: Text message and WhatsApp scams: WhatsApp and social media message scams:What to do if you fall victim
If you've entered your details on a dodgy website, change your password on any relevant accounts.
If you've given away your bank details, call your bank immediately and explain what's happened. Provide as much detail as possible so it can investigate.
undefinedsource https://www.which.co.uk/news/article/young-adults-are-being-targeted-by-impersonation-scams-how-to-stay-safe-azDi98D6efHq