A teenager eavesdropped on highly-sensitive police counter-terror conversations after bypassing technology from the 1980s, hackers claimed today.
The leader of an anarchist group known as Team Poison said it was "easy" to drop "a 24-hour phone bomb" on elite security officers.
Scotland Yard is understood to have been hit with more than 700 calls before an American-sounding caller, using the name Trick, told them they were being "pranked."
Detectives said "appropriate action would be taken" as a number of recordings were posted on YouTube by Team Poison.
More top news
Mr Charles died in hospital after he was chased by a police officer into a shop in Dalston and restrained.
The Labour mayor will seek a second term in City Hall.
The Apprentice boss tweeted a picture of the sports team, which had been edited to include a picture of handbags and sunglasses.