The Journal reports:
Irish Water belatedly instigated a ‘tightening of controls’ and implemented extra training for staff in the wake of customer data breaches at the company earlier this year.
The information has come to light as a result of records released under freedom of information.
The incidents occurred in March 2015 and involved up to 15 customers’ bank details being sent to others without their consent.
Read more on The Journal.
This is not exactly a one-off for them. If you search this site for “Irish Water,” you’ll find other reports of information being sent to the wrong customers.