An Israeli manufacturer opened a plant in Mexico. Someone took the project on, flew out, and engaged a local Priority implementation firm to build the site. Capable, likeable people — working with no discipline at all.
Everything was built directly on production. There were no backups. The test environment had not been kept current, so there was nothing to fall back to. And none of what they built connected to the systems the company was already running.
In Israel, the first symptom was stalls in the system, with the message on screen coming back in Spanish.
Some assumed the company had been hit by ransomware. Others concluded the system had simply lost its mind. Nobody's first thought was that a message had been written in one language and shown to a user working in another — because nobody thinks about that until it happens to them.
We were brought in after it had already come apart. The work began with reverse-engineering: every system that exchanged data with Priority, and every piece of standard code that had been overwritten in production with no backup to restore from. Once that map existed, the local team was placed under our direction — and the plant went live about two weeks later.