“I had to remind myself the other day that when 9-11 took place, of course, there were no tweets, it’s interesting. It only seems like yesterday. There was no social media as we know it today,” Australia’s Director-General of Security Duncan Lewis said during an address to the Lowy Institute.
Since then, a lot has changed in the global threat landscape. This was the underlying message delivered by Lewis as he spoke on Wednesday night, one of the last times before he hands his Australian Security Intelligence Organisation (ASIO) duties over to Mike Burgesson September 15.
Reflecting on his time as ASIO’s 13th Director-General of Security, Lewis pointed to the Latin phrase omne trium perfectum — the rule of three.