Full list of best and worst banks ranked for online security – how safe is yours?

WEAKNESS in some banks’ security could leave customers exposed to scammers, a new Which? investigation has found.

With more people than ever before using mobile banking, criminals are increasingly viewing mobile phones as gateways to consumers’ personal details.

The consumer champion has rated the best and worst firms for keeping customers safe. 

Which? researchers tested banking website and app security across four key criteria:

• Login procedures
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