A jailed terrorist who plotted to kill 80,000 people is still considered a risk by ­security agencies.

Algerian-born Abdul Nacer Benbrika, who led a terror cell planning to bomb the MCG on Grand Final day, is believed to still hold a strong influence over young extremists in Victoria, despite being held in the high-security unit at Barwon Prison.

Several devotees in Melbourne's northern suburbs of Preston, Brunswick and ­Coburg have praised Ben­brika as their spiritual leader online. They labelled the cult figure a "king" and a "martyr" on several Facebook pages.

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