Criminal background checker APCS faces data breach. Exclusive: The attack first affected an upstream provider of bespoke software. Exclusive A leading UK provider of criminal record checks for employers is handling a data breach stemming from a third-party development company. Access Personal Checking Services (APCS) has written to customers to notify them that their data has been compromised, according to emails seen by The Register , and it confirmed to us that Hull-based Intradev was the organization initially attacked. Third-party company: Intradev.