Opinion

Money columnist October 25, 2026 — 5:08am

October 25, 2026 — 5:08am

It was only earlier this month and here in this very column that I wrote about the importance of doing your research and seriously considering your appetite for risk before investing in the tech sector.

And as if right on cue, the market demonstrated exactly why people are increasingly recommending investors move with caution.

The latest AI models are far more advanced than expected and pose a substantial risk to existing cybersecurity defences. Getty

Over the course of a single week of trading last week, more than $US1 trillion ($1.43 billion) was wiped from the stocks of 20 of the world’s biggest semiconductor and AI companies. That sounds pretty bad, right?…