Fraud cases have risen by 16% with con artists stealing more than £3m a day, according to figures from the banking industry.
Criminals have particularly targeted victims by tricking them out of their one-time passcodes, trade body UK Finance said.
Despite the increase in reported cases, total losses have fallen slightly - totalling £572m in the first half of the year.
Banks said that fraud posed a "major threat" to the UK and called for support in tackling the crime.
The figures come after BBC Panorama revealed earlier this week a stream of cases involving e-money firm Revolut.
One victim told of how he lost £165,000 from his business account within an hour. Revolut said it had "robust controls" in place.
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https://www.bbc.co.uk/news/articles/cglk7dlpwl5o