Intelligence that US officials did not disclose "indicated that these senior Syria-based al-Qaida operatives were nearing the execution phase of an attack in Europe or the homeland", a senior official said, which contributed to tighter aviation security measures the US implemented over the summer.
"We believe the Khorasan group is — was nearing the execution phase of an attack either in Europe or the homeland.
"We believe the Khorasan group was nearing the execution phase of an attack either in Europe or the homeland," Lt. Gen. William Mayville, director of operations for the Joint Chiefs of Staff, told reporters late Monday evening.
Execution of a profiling attack with a machine learning model is similar to performing a template attack.
They are "lone actors" only in terms of the actual organisation and execution of a terrorist attack; their world view is shared by a significant number of people.
After every single execution of a command (attack step), the system was left working in normal state for a time period equal to the execution time of the command, capturing again all the system calls engaged during that period.
The execution of a multi-step attack usually leaves traces in several assets in the network and can only be detected from a global perspective, considering the whole attack strategy.
None of the men was in the team who shot the education activist in the head as she sat in a school minivan in 2012, but a security official said they had been part of a wider group of plotters involved in the planning and execution of the attack.
Though the senior leaders of the main rebel movements were not believed to be involved in the planning or execution of the attack, Mr. Jamous said, their failure to stop it demonstrated a loss of control and a new lawlessness that could cost the rebels dearly in negotiating power.
Israeli PM Benjamin Netanyahu praised the military's 'precise execution' of the attack.
