Losses from bank transfer fraud soared to £456m last year, despite dozens of banks signing up to a code to protect their customers from these type of scams.
Which? estimates £320m lost to fraud could have been prevented with the long-overdue system, but some customers remain unprotected.
Which?'s campaign to save coins and notes succeeds as the government confirms measures protecting cash in the Budget.
Up to 400,000 fraud reports were not automatically referred to the police because of a 15-month long IT issue, a Which? Money investigation can reveal.
Which? explains the security behind Apple and Google Pay, where consumer protections like Section 75 apply and what to do if you lose your phone.
Which? investigates how someone lost £2,500 to fraudsters through a Google advert posing as digital bank Revolut.
For years Which? has been revealing the extent of the UK's cash crisis. Now it's time for the government to act.
Al Rayan comes under fire as it announces it's ditching online banking in a matter of days leaving customers confused and struggling to get mobile access to their balances.
Metro Bank has announced its new overdraft rate. Which? explains what this could mean for other banks, and reveals all the rates announced so far.
TSB will cut the interest it pays on its Classic Plus current account so some customers may be better off switching banks but as always, it's not straightforward. Which? looks at whether there are any good reasons to stay.