"The threat from terrorists – from extreme ideologies – needs to be challenged head-on. The probable fate of that Russian airliner in Sinai is a painful reminder of that," Osborne said in a speech at the Imperial College London, a script of which was published on the UK government official website.
According to Osborne, the UK government "will substantially increase the number of people across all three secret intelligence agencies who investigate, analyze and help disrupt terrorist plots" over the next five years.
Osborne said Prime Minister David Cameron would provide more details when speaking at the conclusion of UK Strategic Defense and Security Review on November 23.
The UK government made amendments to its legislature due to terrorist attacks, including the attacks in the United States in September 2001 and a series of bombings in London in July 2005.
On October 31, an Airbus A321 crashed in the Sinai Peninsula en route from the Egyptian resort of Sharm el-Sheikh to St. Petersburg. All 224 people on board were killed in the deadliest civil aviation disaster in Russian history.
UK and US officials said last week there was a possibility that the crashed Russian airliner could have been brought down by a bomb.
On Wednesday, the British government banned all flights between the Egyptian resort city and airports in the United Kingdom, and introduced additional security measures.
