'Smart Grid' may be vulnerable to hackers: Via CNN.com .

WASHINGTON (CNN) -- Is it really so smart to forge ahead with the high technology, digitally based electricity distribution and transmission system known as the "Smart Grid"? Tests have shown that a hacker can break into the system, and cybersecurity experts said a massive blackout could result.

Until the United States eliminates the Smart Grid's vulnerabilities, some experts said, deployment should proceed slowly.

"I think we are putting the cart before the horse here to get this stuff rolled out very fast," said Ed Skoudis, a co-founder of InGuardians, a network security research and consulting firm.

The Smart Grid will use automated meters, two-way communications and advanced sensors to improve electricity efficiency and reliability. The nation's utilities have embraced the concept and are installing millions of automated meters on homes across the country, the first phase in Smart Grid's deployment. President Obama has championed Smart Grid, and the recent stimulus bill allocated $4.5 billion for the high-tech program.

But cybersecurity experts said some types of meters can be hacked, as can other points in the Smart Grid's communications systems. IOActive, a professional security services firm, determined that an attacker with $500 of equipment and materials and a background in electronics and software engineering could "take command and control of the [advanced meter infrastructure] allowing for the en masse manipulation of service to homes and businesses."

Experts said that once in the system, a hacker could gain control of thousands, even millions, of meters and shut them off simultaneously. A hacker also might be able to dramatically increase or decrease the demand for power, disrupting the load balance on the local power grid and causing a blackout. These experts said such a localized power outage would cascade to other parts of the grid, expanding the blackout. No one knows how big it could get.

Read Original Article (Via CNN.com.)