Organisations impacted are Visa System Processors or service providers that store, process or transmit Visa cardholder data on behalf of Visa Europe acquirers, issuers, merchants or other service providers.

This reflects a trend in recent years which has seen the Level 1 transaction volume limit steadily reduced from 1 million to 600,000 level last year and to its new level of 300,000.

If you require further information on the potential impact of this change to your organisation, please contact your eircom account manager who will put you in touch with the relevant eircom security specialist.