But after a heart attack, the pattern is chaotic.

BBC: Computer heart to beat disease

Yet companies are only expected to pull out if the In Amenas attack becomes part of a pattern.

CNN: Oil and gas industry reviews security

Cox continued that Sunday's attack followed a now familiar pattern.

CENTERFORSECURITYPOLICY: March of the red/green brigades

Such has been the emphasis on that aspect of Wales' play under Gatland and Shaun Edwards that even in attack Wales' formation has recently mirrored a defensive pattern.

BBC: Fans disappointed by Wales slump

Internet security firm Mandiant, which was hired by the Times to trace the attack, followed the hackers' movements for four months, to try to establish a pattern and block them.

BBC: New York Times 'hit by hackers from China'

After the break, the pattern was much the same, with Boro keeping their shape and trying to hit Liverpool on the counter-attack.

BBC: Liverpool 2-1 Middlesbrough