Terrorism is getting worse with deaths at their highest level in more than five years, as Australia's top spy warns of an increasing risk of sabotage by potential terrorists.
Deaths from terrorism eclipsed 8350 - up 22 per cent - but the number of attacks have fallen, meaning they were more deadly, according to the Global Terrorism Index.
There's been a more than 50 per cent jump in people killed per attack marking the worst rate in almost a decade, it found.
