Were you born after 1988 in a small state? If so, researchers would have a particularly good chance of figuring out your Social Security number. In a new study, researchers used publicly available data, including an individual’s place and date of birth, to guess the Social Security number that would have been assigned to that person. And the study’s authors say that cyber-crooks could use similar techniques for identity theft. “We live in a precarious time, where knowledge of a Social Security number, along with other information about one’s name and date of birth, is sometimes sufficient to impersonate another individual,” said Alessandro Acquisti, the study’s lead author [Bloomberg].
Acquisti’s team shared their results with the federal government, but the Social Security office is downplaying the findings; spokesman Mark Lassiter said there is still no “foolproof” method for predicting Social Security numbers. “The suggestion that Mr. Acquisti has cracked a code for predicting an SSN is a dramatic exaggeration,” Lassiter said via e-mail. However, he added: “For reasons unrelated to this report, the agency has been developing a system to randomly assign SSNs. This system will be in place next year” [AP].
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In a rare victory for freedom of information in China, the government has abruptly reversed course on its mandate that Internet filtering software be installed on every computer sold in China after July 1.
Yesterday, the Ministry of Industry and Information Technology announced that mandatory installation of the software, called Green Dam Youth Escort, would be delayed indefinitely. The software caused a torrent of protests from both Chinese computer users and global computer makers…. China has said the software is designed to filter out pornography and violence to protect minors, but many experts say it can also block any other content that the authorities deem subversive [The New York Times].
While some experts suggested that the Chinese government might be delaying the program’s roll-out simply to give computer makers more time to test the software and comply with the policy, others believe that the government was forced to bow to the pressure from outraged citizens. “This shows that social pressure can’t be ignored,” said Zhou Ze, a Beijing lawyer who challenged the legality of the plan. “They tried to control public opinion to back the plan by creating a fuss about pornography, but that failed, and they will have learnt to be more careful next time” [Reuters]. Analyst Edward Yu of Beijing says that while protests from foreign computer companies probably influenced the government’s decision, “we think public opinion played an even more important role” [AP].
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When North Korea announced on May 25th that it had conducted its second underground test of a nuclear weapon, scientists weren’t surprised: They had already picked up seismic readings indicating a subterranean explosion. While seismologists say the readings carried subtle signatures that strongly suggest that the blast was caused by a nuclear device rather than conventional explosives, scientists were still waiting for one more piece of evidence–detecting radionuclide evidence in the form of radioactive gas is the “smoking gun”. And the big news here is that they have not found that signal [BBC Two].
Unlike other nuclear debris, xenon, an unreactive noble gas, can filter out through fissures in the rock after an underground test. Once in the atmosphere, plumes of xenon isotopes can be blown for thousands of miles. In 2006, for example, a [nuclear monitoring] station in Yellowknife, Canada, detected traces of xenon-133 two weeks after North Korea’s first test [Nature News]. But monitoring stations set up by the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) have failed to detect any trace of xenon following the May blast, and now it may be too late. Researcher Lassina Zerbo of the CTBTO notes that these xenon isotopes rapidly decay in the atmosphere. This long after the blast, he says, “there is very little chance that we will pick up anything” [Nature News].
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The street protests in Iran will be not be televised–how passé. Instead, they are being tweeted.
The microblog service Twitter has become a critical way to get out information about the tumult in Iran’s capital, Tehran, where people have poured into the street to protest the disputed results of last Friday’s presidential election. And the whole world is watching. The U.S. State Department has confirmed that over the weekend officials reached out to Twitter and asked them to delay a network upgrade that was scheduled for Monday night. The reason? To protect the interests of Iranians using the service [Time].
The vast majority of Twitter messages support the leading opposition candidate, Mir Hussein Moussavi, and argue that he was the true winner of the presidential election. Twitter users are posting messages, known as tweets, with the term #IranElection, which allows users to search for all tweets on the subject. On Monday evening, Twitter was registering about 30 new posts a minute with that tag. One read, “We have no national press coverage in Iran, everyone should help spread Moussavi’s message. One Person = One Broadcaster. #IranElection” [The New York Times]. Since then, the Iranian government has restricted the movements of foreign journalists and has cracked down on blogs and Web sites within the country, but the flow of information on Twitter has only increased.
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Even before North Korea announced that it had conducted its second underground test of a nuclear weapon, scientists around the world were putting together a picture of what had happened. With a combination of seismic and radiation monitoring, scientists expect to soon have a working idea of how far the rogue nation’s nuclear program has advanced.
At 9:55 a.m. local time on Monday, two seismic monitoring stations on the Japanese coast detected seismic waves coming from the area where North Korea last tested a nuclear weapon, in 2006. The region has little natural seismic activity, and experts noted that the waves didn’t match patterns produced by earthquakes. Movements along natural fault lines transmit most of their energy through ’s-waves’, whereas explosions at a single point release a greater proportion through compressional p-waves. In the waves detected in Japan, the s-wave component was just one-fifth that of the p-wave. “You can’t say it’s impossible for a natural earthquake, but it would be very rare,” says Gen Aoki of the Japan Meteorological Agency in Tokyo [Nature News].
Experts note that the network of blast detectors intended for the Comprehensive Test Ban Treaty, which has not yet come into force, seems to have perfectly identified the explosion as a nuclear test, despite its small size. [In 1998, the U.S. Senate] rejected the CTBT partly over fears that countries could cheat, by claiming small covert weapons tests were earthquakes. The detection of the North Korean test raises hopes that the Senate will no longer be able to object [New Scientist]. But scientists had to do more than simply show that an underground explosion had sent ripples through the earth; they also have to determine how big the bomb was, and prove that the tremors weren’t caused by conventional explosives.
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To explore the dark reaches of the solar system, NASA is going to need a lot more plutonium-238, the space agency has told the Department of Energy. NASA’s deep space probes are powered by pellets of the plutonium isotope: The electricity that powers onboard instruments comes from devices called radioisotope power generators. The RPGs make electricity with the heat from the radioactive decay of small amounts of plutonium-238 carried on board [Los Angeles Times]. Such devices are the only option for probes that voyage far from the sun and can’t absorb enough solar energy to power their operations.
But a new report from the National Research Council notes that the world’s stockpile of Pu-238 is rapidly dwindling, and explains that NASA only has enough left for a couple more missions. The isotope isn’t found in nature, and its production is at a dead halt all around the world. The United States stopped making Pu-238 at the end of the Cold War; although the isotope cannot be used in nuclear weapons, it’s a byproduct of the production of weapons-grade Pu-239. For the past few years NASA has been buying its supply from Russia, but Russia’s plutonium-making reactors were also shut down years ago. NASA will soon receive its last shipment of the isotope from Russia, after which the space agency will be looking for a new supplier.
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Cyber spies have hacked into computers containing information about the U.S. Defense Department’s most expensive weapons program ever: the $300 billion Joint Strike Fighter, a fighter jet also known as F35 Lightning II. The intruders were able to copy and siphon off several terabytes of data related to design and electronics systems, officials say, potentially making it easier to defend against the craft. The latest intrusions provide new evidence that a battle is heating up between the U.S. and potential adversaries over the data networks that tie the world together [The Wall Street Journal].
U.S. officials reportedly traced the hackers back to China, but experts note that it’s extremely difficult to determine the real origin of an online attack, as paths can be disguised and identities masked. Meanwhile, the Chinese Embassy said in a statement that China “opposes and forbids all forms of cyber crimes.” It called the Pentagon’s report “a product of the Cold War mentality” and said the allegations of cyber espionage are “intentionally fabricated to fan up China threat sensations” [The Wall Street Journal].
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If you’re arrested for a felony in the state of California, expect to give up a DNA sample. As of January 1, California police departments began taking and storing genetic samples from all adults arrested for felonies, regardless of whether they go on to charge those people with crimes, or whether the suspects are ultimately convicted. Meanwhile, the FBI and 15 states now collect DNA samples from immigrants who are detained, and 16 states store genetic samples from people found guilty of misdemeanors.
The intent is to create a large genetic database that will allow police to solve more crimes, but critics say the cumulative effect may be unconstitutional. Criminal justice experts cite Fourth Amendment privacy concerns and worry that the nation is becoming a genetic surveillance society…. “What we object to — and what the Constitution prohibits — is the indiscriminate taking of DNA for things like writing an insufficient funds check, shoplifting, drug convictions,” said Michael Risher, a lawyer for the American Civil Liberties Union [The New York Times].
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The computer worm known as Conficker that has infected millions of PCs around the world stirred yesterday and raised new fears that the hackers behind the worm are gearing up to cause mischief, but experts say their intentions are still mysterious. The worm went active on April 1, but it didn’t seek to disrupt networks and didn’t harness infected computers to send out waves of spam. The lack of a clear business model for Conficker … had confounded researchers and analysts. In fact, it was one of the reasons why there was so much attention paid to the worm’s new communications scheme activation date: Everyone wondered what it would do on April 1 to monetize the effort spent collecting a massive botnet [Computerworld].
Over the past two days infected machines have begun to download additional software, but so far the results still haven’t been as dire as many experts originally predicted. According to varying reports, some computers are just preparing to run a small-scale scam on their users, while others have adopted an existing email worm that can steal passwords and send spam. The latter function may be more troublesome, some experts say. The consensus within the computer security industry is that although there are now some indications that Conficker’s authors are intent on building a giant spam system, there is no hard evidence. “This is just Step 5 in a thousand-step chess match,” [The New York Times], said security expert Vincent Weafer.
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Spies have hacked into the U.S. electrical grid and left behind software programs that could allow outside agents to seize control of the grid and disrupt the flow of electricity across the nation, according to a report in The Wall Street Journal.
The spies came from China, Russia and other countries, [national security] officials said, and were believed to be on a mission to navigate the U.S. electrical system and its controls. The intruders haven’t sought to damage the power grid or other key infrastructure, but officials warned they could try during a crisis or war. “The Chinese have attempted to map our infrastructure, such as the electrical grid,” said a senior intelligence official. “So have the Russians” [The Wall Street Journal]. While officials say they traced the intrusions back to China, Russia, and other countries, experts say it’s nearly impossible to prove that the hacks were government-sponsored. The Chinese and Russian governments have denied any wrongdoing.
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While the international community reacted with outrage to North Korea’s rocket launch on Sunday, calling it a provocative test of a long-range missile, North Korea’s isolated leader, Kim Jong-Il, continued to insist that the launch was an entirely peaceful enterprise. Kim has repeatedly said that the rocket was intended to send an experimental satellite into orbit, and said it would mark the beginning of his country’s space program. There was also disagreement on the basic question of whether anything reached orbit. Officials from the North American Aerospace Defense Command (NORAD) say the rocket’s payload splashed down into the Pacific Ocean, while North Korea claims that the satellite is already broadcasting from space.
The North Korean news agency reports that Kim is pleased and proud. “Expressing great satisfaction over the fact that scientists and technicians of the [North Korea] successfully launched the satellite with their own wisdom and technology, he highly appreciated their feats and extended thanks to them,” the agency said…. According to North Korea’s official media, not only did the country successfully send a communications satellite into orbit, but “it is sending to the Earth the melodies of the immortal revolutionary paeans ‘Song of General Kim Il Sung’ and ‘Song of General Kim Jong Il’” [CNN].
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The computer worm known as Conficker woke up as expected this morning when calendars flipped to April 1, but fears that millions of infected computers would launch an attack on the world’s cyber-infrastructure have so far proved to be unfounded. Computer security experts have been warning the public for weeks that the Conficker worm was set to try to download commands from a server at an unknown Internet location on [April 1]. There was no certainty about the intent of the program, which could be used to send e-mail spam, distribute malicious software or generate a potentially devastating “denial of service” attack on Web sites or networks [The New York Times].
The worm is thought to have infected 12 million computers worldwide, with the most infections occurring in Asia. But computer experts monitoring the progress of the worm say that while infected computers do appear to be trying to link to control servers, the mysterious hackers behind the virus have yet to give those computers any specific instructions. However, security experts warned that there was no room for complacency…. “We believe the software is geared towards making money. The characteristic of this type of worm is to keep it slow and low, keep it under the radar to slowly maximise profits over the long term” [BBC News], says Vincent Weafer, of the anti-virus firm Symantec.
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The blast that shook the Chernobyl nuclear power plant more than 20 years ago, sending a highly radioactive plume of fallout into the air, still affects local populations of butterflies and bees and other insects, according to a new study. The study appears to argue against the idea put forward by previous researchers that the region around the power plant, contaminated by radiation and off limits to most humans, has become a sort of post-apocalyptic Eden [The New York Times], in which animals can live unmolested. However, the new results are stirring up controversy.
A pair of researchers conducted standard surveys in forests around Chernobyl over three springs from 2006 to 2008, noting the numbers of bumblebees, butterflies, grasshoppers, dragonflies and spider webs at points with radiation levels that varied over four orders of magnitude [The New York Times]. They found that the number of bugs declined as the radiation increased, and that even relatively low levels of radiation impacted insect populations. The researchers say insects may be particularly vulnerable because radiation is usually found in the top layer of soil, where many invertebrates spend time during either their egg, larvae, or adult phases.
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Israeli researchers say they’ve developed a way to modify nuclear fuel so that it can be used only in power plants, and can’t be recycled later to build nuclear weapons. Lead researcher Yigal Ronen says the work could help “de-claw” some countries if nuclear fuel producers – the US, Russia, Germany, France and Japan – agree to put the denaturing additive they have proven effective into all plutonium [Jerusalem Post].
Israeli scientists suggest in their study that the element americium be added to the fuel at a level of 0.1 percent [Israel National News]. According to their research, the addition would neutralize the fissile plutonium produced by nuclear reactors, making that “denatured” plutonium unusable in a weapon. The research will be published in the journal Science and Global Security next month.
Ronen explains that when a country purchases a nuclear reactor from one of the five nuclear fuel producers, the sale includes nuclear fuel for the reactor. “Thus, if the five agree to insert the additive into fuel for countries now developing nuclear power – such as Bahrain, Egypt, Kuwait, Libya, Malaysia, Namibia, Qatar, Oman, United Arab Emirates, Saudi Arabia and Yemen – they will have to use it for peaceful purposes rather than warfare” [The Register], says Ronen. However, the researchers say that countries with more advanced nuclear programs, like Iran, have other ways to produce weapons-grade fuel.
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The North Korean government announced yesterday that it’s preparing to launch a communications satellite on a North Korean-made rocket, a move that has been widely interpreted as a test firing of its long-range missile. South Korea and the United States say any test-firing, whether a purported satellite launch or a missile test, would be provocative since the technology is dual-use, and would breach UN resolutions [AFP]. Experts say that the long-range Taepodong-2 rocket has a range of about 4,200 miles, which gives it the theoretical capacity to hit Alaska. But in the only previous test of the long-range rocket, in 2006, it exploded 40 seconds after launch.
North Korea has insisted that the launch is a purely scientific endeavor. “The preparations for launching an experimental communications satellite … are now making brisk headway,” North Korea’s KCNA news agency said. “When this satellite launch proves successful, the nation’s space science and technology will make another giant stride forward in building an economic power” [Reuters]. South Korean news sources have reported that the rocket has not yet been moved to the launch pad, but that there is a great deal of activity around the site.
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