Problem missed despite four layers of tests.
Nearly two years after formation.
Built using Azure OpenAI.
Worked with notorious hacking gang.
Years after patch availability.
Sweeping overhaul of call centre and network division procedures.
A place to access data from 251 systems and deploy AI models.
Brings some work forward, pushes out completion.
Critical tech now covered by business and corporate subcommittee.
Will take on 150 new staff to overhaul "procedures".