1. Banking IT security issues reinforced by the European PSD 2 directive

Banking is all about trust, and there can be no trust without security.

Banking depends entirely on information systems. Whatever the banking institution's "business line" (corporate finance, trading and sales, retail banking, commercial banking, payment and settlement, agency services, asset management, retail brokerage), there is an operational risk linked to the inadequacy, failure or weakness of information system security measures and systems.

Banking information systems are structured in networks. The five network security functions defined by ISO are :

• authentication ;

• access control ;

• integrity control ;

• confidentiality;

• non-repudiation.

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