The incident was "an important reminder to us that security and reliability and not losing data require specific attention, " Mr. Houston said.

WSJ: Hype Hangs Over Dropbox

The presence of the British trade envoy Lord Risby and the Algerian energy minister is a reminder that oil and not just security is high on the agenda here.

BBC: Neighbourhood watch not mission creep

Tuesday's speech served as a clear reminder of why Romney so rarely speaks of national security, which is normally a sacred and central issue for Republican candidates.

CNN: Romney's reckless rhetoric

It will be another reminder that NATO is truly a hub of a network of global security partners.

WHITEHOUSE: Opening Session of the North Atlantic Council

It came as an unneeded reminder that despite the high hopes that prevailed in 2009, the security situation has never really stabilised and shows recent signs of deteriorating further.

BBC: Local polls pose challenge for Iraq after US withdrawal

And it is a sobering reminder that every President faces at some point an unexpected threat to our national security from abroad.

WHITEHOUSE: The White House

Ten years after the world-record-setting diamond heist in Antwerp, this week's diamond robbery is a sharp reminder that sophisticated criminal outfits are still out there and that even the most impressive security system could have unnoticed holes.

CNN: Diamond heists are forever

But it was a sobering reminder that the cyber threat to our nation is one of the most serious economic and national security challenges we face.

WHITEHOUSE: Taking the Cyberattack Threat Seriously

His triumphal progress with al-Aqsa fighters in Gaza this week was both a show of strength and a reminder of potential weakness: they were of a branch loyal to Muhammad Dahlan, the Gaza security chief who is one of Mr Abbas's staunch backers, and thus one of his chief props.

ECONOMIST: Palestine's election