A security firm is warning that a powerful new version of the Zeus Trojan is likely to lead to a significant rise in fraud losses.
Trusteer, who provide security services to many online banks, have warned that Zeus variants can now penetrate even strong layers of protection by using HTML injection and transaction tampering.
The increased sophistication of the Trojan means that it can now bypass the previously effective security built into Firefox, which is used by about 30 per cent of online banking customers.
The company has advised banks to make sure that their detection and mitigation methods are up to speed and warned users to check that that their anti-virus and operating systems are up to date.
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