Mind the air-gap: Singapore's web cut-off balances security, inconvenience
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Public servants and contractors sit at their desks at a public housing administration center in Singapore June 13, 2016. REUTERS/Edgar Su
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By Jeremy Wagstaff and Aradhana Aravindan
SINGAPORE (Reuters) - Singapore is working on how to implement a policy to cut off web access for public servants as a defense against potential cyber attack - a move closely watched by critics who say it marks a retreat for a technologically advanced city-state that has trademarked the term "smart nation".
Some security experts say the policy, due to be in place by May, risks damaging productivity among civil servants and those working at more than four dozen statutory boards, and cutting them off from the people they serve. It may only raise slightly the defensive walls against cyber attack, they say.
Ben Desjardins, director of security solutions at network security firm Radware, called it "one of the more extreme measures I can recall by a large public organization to combat cyber security risks." Stephen Dane, a Hong Kong-based managing director at networking company Cisco Systems, said it was "a most unusual situation", and Ramki Thurimella, chair of the computer science department at the University of Denver, called it both "unprecedented" and "a little excessive."
But not everyone takes that view. Other cyber security experts agree with Singapore authorities that with the kind of threats governments face today it has little choice but to restrict internet access.
FireEye, a cyber security company, found that organizations in Southeast Asia were 80 percent more likely than the global average to be hit by an advanced cyber attack, with those close to tensions over the South China Sea - where China and others have overlapping claims - were particularly targeted.
Bryce Boland, FireEye's chief technology officer for Asia Pacific, said Singapore's approach needed to be seen in this light. "My view is not that they're blocking internet access for government employees, it's that they are blocking government computer access from Internet-based cyber crime and espionage."
Singapore officials say no particular attack triggered the decision, but noted a breach of one ministry last year. David Koh, chief executive of the newly formed Cyber Security Agency, said officials realized there was too much data to secure and the threat "is too real."
Singapore needed to restrict its perimeter, but, said Koh, "there is no way to secure this because the attack surface is like a building with a zillion windows, doors, fire escapes."
Koh said he was simply widening a practice of ministries and agencies in sensitive fields, where computers are already disconnected, or air-gapped, from the Internet.
Public servants will still be able to surf the web, but only on separate personal or agency-issued devices.
Air-gapping is common in security-related fields, both in government and business, but not for normal government functions. Also, it doesn't guarantee success.
Anthony James, chief marketing officer at cyber security company TrapX Security, recalled one case where an attacker was able to steal data from a law enforcement client after an employee connected his laptop to two supposedly separated networks. "Human decisions and related policy gaps are the No.1 cause of failure for this strategy," he said.
"STOPPING THE INEVITABLE"?
Indeed, just making it work is the first headache.
The Infocomm Development Authority (IDA) said in an email to Reuters that it has worked with agencies on managing the changes "to ensure a smooth transition," and was "exploring innovative work solutions to ensure work processes remain efficient."
Johnny Wong, group director at the Housing Development Board's research arm, called the move "inconvenient", but said "it's something we just have to adapt to as part of our work."
At the Land Transport Authority, a group director, Lew Yii Der, said: "Lots of committees are being formed across the public sector and within agencies like mine to look at how we can work around the segregation and ensure front-facing services remain the same."
Then there's convincing the rank-and-file public servant that it's worth doing - and not circumventing.
One 23-year-old manager, who gave only her family name, Ng, said blocking web access would only harm productivity and may not stop attacks. "Information may leak through other means, so blocking the Internet may not stop the inevitable from happening," she said.
It's not just the critics who are watching closely.
Local media cited one Singapore minister as saying other governments, which he did not name, had expressed interest in its approach.
Whether they will adopt the practice permanently is less clear, says William Saito, a special cyber security adviser to the Japanese government. "There's a trend in private business and some government agencies" in Asia to go along similar lines, he said, noting some Japanese companies cut internet access in the past year, usually after a breach.
"They cut themselves off because they thought it was a good idea," he told Reuters, "but then they realized they were pretty dependent on this Internet thing."
Indeed, some cyber security experts said Singapore may end up regretting its decision.
"I'm fairly certain they would regret it and wind up far behind other nations in development," said Arian Evans, vice president of product strategy at RiskIQ, a cyber security start-up based in San Francisco.
The decision is "surprising for a country like Singapore that has always been a leader in innovation, technology and business," he said.
(Reporting by Jeremy Wagstaff and Aradhana Aravindan, with additional reporting by Paige Lim; Editing by Ian Geoghegan)
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