"Since Lahore we have accepted there is never a 100 percent guarantee -- that's the way life is," Sangakkara said.
"We've got to have the mental strength and fortitude to get on with our business of playing cricket.
"With all teams in the current world climate, not just us, security is going to be an issue, in some countries more so than others maybe. But still worldwide there is a threat so our mental comfort depends on certain things being put in place for us and so far we have been very satisfied."
The Sri Lanka team are liaising daily with a national police intelligence cell set up to oversee security for the World Cup in England, which starts on Friday. World Twenty20 tournament director and former South Africa player Steve Elworthy, 44, held the same role at the 2007 World Twenty20 in South Africa. He said security had become much tighter since Lahore.
"The situation has changed and it's now a completely different landscape to then," said Elworthy.
"Without a shadow of a doubt it opened our eyes even more to the hazards facing cricketers and officials.”