New Delhi, July 3 -- All banks have been advised to prevent cyber frauds by employing the Department of Telecommunications (DoT) real-time, risk-based metric - Financial Fraud Risk Indicator (FRI) - which would help them in declining suspicious transactions, issuing alerts or warnings to customers, and delaying transactions flagged as high risk, a finance ministry official said. The Reserve Bank of India (RBI) has already issued an advisory last month to this effect, directing all scheduled commercial banks, payments banks and co-operative banks to integrate FRI developed by DoT into their systems, the official, who did not wish to be named, said. In a statement issued on Wednesday, the ministry of communications welcomed RBI's directive. "...