Consumers need to ensure that their browsers are properly updated to protect against drive by downloads, she said. They also need to watch for any suspicious behavior or transactions on their accounts.

RSA has also notified U.S. law enforcement and its own FraudAction Global Blocking Network about the threat, she said. Banks, meanwhile, should consider implementing stronger authentication procedures and anomaly detection tools for spotting unusual wire transfers.

Jaikumar Vijayan covers data security and privacy issues, financial services security and e-voting for Computerworld. Follow Jaikumar on Twitter at or subscribe to . His e-mail address is .

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