The office also investigated controversies involving PPS numbers at Irish Water and the Department of Education, and engaged with the Department of Communications in relation to Eircode – the national postcode system.
Helen Dixon has released her first annual report since taking over from Billy Hawkes who retired last year.
Her office also engaged with tech multinationals – like Facebook, LinkedIn, Microsoft and Adobe.
A record number of data breach notifications were received along with a record number of queries via email.
The office's staff went from 29 to 50 and an office was also established in Dublin.
