IT security problems shift as data moves to 'cloud'
By Rob Lever, AFP
June 25, 2012, 12:08 am TWN
WASHINGTON--The Internet "cloud" has become the hottest topic in computing, but the trend has created a new range of security issues that need to be addressed.
The cloud is associated with things like personal emails and music which can be accessed on computers and a range of mobile devices.
But the U.S. military and government agencies from the CIA to the Federal Aviation Administration also use cloud systems to allow data to be accessed anywhere in the world and save money — and, ostensibly, to enhance security.
Microsoft, Google, Amazon and others are major players in the cloud, which seeks to transfer some of the data storage issues to more sophisticated data centers. Firms like Oracle, SAP and Salesforce.com offer cloud services for business.
Strategy Analytics forecasts U.S. spending on cloud services to grow from US$31 billion in 2011 to US$82 billion by 2016.
But some experts say security implications of the cloud have not been fully analyzed, and that the cloud may open up new vulnerabilities and problems.
"If past is prologue I don't think any system is absolutely secure," said Stelios Sidiroglou-Douskos, a research scientist at the Massachusetts Institute of Technology's Computer Science and Artificial Intelligence Laboratory.
"The analogy most people give is having a lock on your door. It's not a guarantee no one will break in, but it's a question of how much time it will take, and if your lock is better than your neighbor's."
In a cloud environment, "this makes the job of the attacker so much harder, which means the amateur hacker might be obsolete," said Sidiroglou-Douskos, who is working on a U.S. government-funded research project to develop "self-healing" clouds.
Potential Gold Mine for Cybercriminals
But if a system is breached, analysts say, the amount of information lost could be far greater than what is in a single computer or cluster.
"You can have better defenses" in the cloud, "but if an attack happens, it's highly amplified," says Sidiroglou-Douskos.
The four-year MIT project funded by the Defense Advanced Research Projects Agency seeks to develop systems that automatically fix data breaches in a manner similar to "human immunology," says the researcher.
A number of cloud security breaches have raised concerns, including attacks on the Sony PlayStation Network, LinkedIn and Google's Gmail service. One hacker recently claimed to have stolen credit card numbers from 79 major banks.
"Crimes target sources of value. Large company networks offer more targets to hackers," says Nir Kshetri, a professor of economics who studies cybercrime at the University of North Carolina at Greensboro.
"Information stored in clouds is a potential gold mine for cybercriminals."
Kshetri said in a paper submitted to the journal Telecommunications Policy that when questions come up, "the cloud industry's response has been: Clouds are more secure than whatever you're using now. But many users do not agree."
Marcus Sachs, former director of the Sans Technology Institute's Internet Storm Center, said the cloud may be more secure but also opens up new questions.
"In the cloud, you don't necessarily know where your data sits," Sachs told AFP.
Sachs said analysts have also discovered "fake clouds" which are offered as low-cost alternatives.