Is anyone really surprised?
“We have found their data in the middle of other investigations,” he said. “They are shocked and, in many cases, they’ve been breached for many months, in some cases years, which means that an adversary had full visibility into everything occurring on that network, potentially.”
Mr. Henry said that while many company executives recognize the severity of the problem, many others do not, and that has frustrated him. But even when companies build up their defenses, their systems are still penetrated, he said. “We’ve been playing defense for a long time. …You can only build a fence so high, and what we’ve found is that the offense outpaces the defense, and the offense is better than the defense,” he said.
Testimony Monday before a government commission assessing Chinese computer capabilities underscored the dangers. Richard Bejtlich, chief security officer at Mandiant, a computer-security company, said that in cases handled by his firm where intrusions were traced back to Chinese hackers, 94% of the targeted companies didn’t realize they had been breached until someone else told them. The median number of days between the start of an intrusion and its detection was 416, or more than a year, he added.
In one such incident in 2010, a group of Chinese hackers breached the computer defenses of the U.S. Chamber of Commerce, a major business lobbying group, and gained access to everything stored on its systems, including information about its three million members, according to several people familiar with the matter.