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Re: N-version programming -- the errors are in ourselves
by MellorPeter＠aol.com 14 Jul '07

14 Jul '07

Regarding the thread in RISKS-24.71 and 72, the results of Knight and Leveson's famous N-version experiment show that, if any three of the replicates from among those they had written were combined in a two-out-of-three voting configuration, the resulting fault-tolerant system would have a probability of failure 19 times smaller than one of the replicates on its own. This is not as much as fully independent failure would yield, but it is a significant improvement. Peter Mellor +44 (0)20 8459 7669 Mobile: 07914 045072 MellorPeter(a)aol.com ------------------------------

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Re: N-version programming -- the errors are in ourselves
by MellorPeter＠aol.com 14 Jul '07

14 Jul '07

Regarding the thread in RISKS-24.71 and 72, the results of Knight and Leveson's famous N-version experiment show that, if any three of the replicates from among those they had written were combined in a two-out-of-three voting configuration, the resulting fault-tolerant system would have a probability of failure 19 times smaller than one of the replicates on its own. This is not as much as fully independent failure would yield, but it is a significant improvement. Peter Mellor +44 (0)20 8459 7669 Mobile: 07914 045072 MellorPeter(a)aol.com ------------------------------

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Re: Gripen: Risks of safety measures in military jet aircraft
by MellorPeter＠aol.com 14 Jul '07

14 Jul '07

In RISKS-24.71 Paul E. Black quotes "maddogone" as saying, "The tests show it was the G-suit which activated the ejection. ... when it filled with air it pressed against the release handle" In RISKS-24.72 Matt Jaffe <jaffem(a)cableone.net> quotes him and writes: > I am unfamiliar with the Gripen but back in my day, more decades ago than > I care to think about, US ejections seats were activated by handles of one > sort or another and none of the handles in the aircraft I am familiar with > could be activated by simple pressure (of an inflating G-suit). In the early 1990's I spoke to a manufacturer of ejector-seats. Ejection was initiated by an upward pull on a handle positioned between the pilot's legs. The procedure was for the pilot to pull on the handle with the right hand, with the left hand gripping the right wrist. My contact explained that this was not because the handle was particularly stiff to operate (although it was not "hair-trigger") but in order to ensure that the pilot took his left arm with him when he left. Little chance of the inflation of a G-suit, or G-force alone, causing unintentional operation in that case. (I don't know if this applied to specifically to the Gripen.) With aerodynamically unstable aircraft, the situation is different. If the FCS goes down, the aircraft might break up within half a second or so, depending on the airspeed and attitude, and I was given to understand that ejection would be automatic, i.e., initiated without manual input from the pilot. Perhaps someone familiar with the Eurofighter could supply some authoritative information. Peter Mellor +44 (0)20 8459 7669 Mobile: 07914 045072 MellorPeter(a)aol.com ------------------------------

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Re: Gripen: Risks of safety measures in military jet aircraft
by MellorPeter＠aol.com 14 Jul '07

14 Jul '07

In RISKS-24.71 Paul E. Black quotes "maddogone" as saying, "The tests show it was the G-suit which activated the ejection. ... when it filled with air it pressed against the release handle" In RISKS-24.72 Matt Jaffe <jaffem(a)cableone.net> quotes him and writes: > I am unfamiliar with the Gripen but back in my day, more decades ago than > I care to think about, US ejections seats were activated by handles of one > sort or another and none of the handles in the aircraft I am familiar with > could be activated by simple pressure (of an inflating G-suit). In the early 1990's I spoke to a manufacturer of ejector-seats. Ejection was initiated by an upward pull on a handle positioned between the pilot's legs. The procedure was for the pilot to pull on the handle with the right hand, with the left hand gripping the right wrist. My contact explained that this was not because the handle was particularly stiff to operate (although it was not "hair-trigger") but in order to ensure that the pilot took his left arm with him when he left. Little chance of the inflation of a G-suit, or G-force alone, causing unintentional operation in that case. (I don't know if this applied to specifically to the Gripen.) With aerodynamically unstable aircraft, the situation is different. If the FCS goes down, the aircraft might break up within half a second or so, depending on the airspeed and attitude, and I was given to understand that ejection would be automatic, i.e., initiated without manual input from the pilot. Perhaps someone familiar with the Eurofighter could supply some authoritative information. Peter Mellor +44 (0)20 8459 7669 Mobile: 07914 045072 MellorPeter(a)aol.com ------------------------------

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SOLD OUT ! Rolex. Rolex Rolex. All Rolexes are here gtxl0k
by Dorothy C. Talley 14 Jul '07

14 Jul '07

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by Addie David 14 Jul '07

14 Jul '07

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by Maxine Dwyer 14 Jul '07

14 Jul '07

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by Dale Ladner 14 Jul '07

14 Jul '07

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14 Jul '07

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Who's Fighting Identity Theft? You'd Be Surprised
by R.A. Hettinga 14 Jul '07

14 Jul '07

<http://www.informationweek.com/blog/main/archives/2007/07/whos_fighting_i.h…> InformationWeek Topics: Security Who's Fighting Identity Theft? You'd Be Surprised Posted by Larry Greenemeier, Jul 12, 2007 05:43 PM I love a good scrap, and one of the more interesting ones I've been following this year involves the U.S. Justice Department and E-Gold, an organization that provides a payment system for online transactions. The government says that E-Gold facilitates cybercrime by allowing the criminal element to pay online for stolen goods. Yet E-Gold portrays itself as a fellow cybercrime fighter and asserts the government ignores its offers for assistance and is taking credit for E-Gold's investigative work. A federal grand jury in late April indicted E Gold Ltd, Gold & Silver Reserve Inc., and the owners of these related digital currency businesses on charges of money laundering, conspiracy, and operating an unlicensed money transmitting business. However, E-Gold chairman Douglas Jackson disputes these charges and asserts that the U.S. Secret Service's recent announcement that it has arrested and indicted four members of an organized fraud ring in south Florida was helped by E-Gold's own investigative efforts. "The recent USSS press release is the second instance in three weeks where the USSS is claiming credit for work that was actually initiated and performed last year by e-gold's own in-house investigators," Jackson told me in an e-mail exchange today. Why is all of this squabbling important to you? As you'll see in InformationWeek's upcoming 10th Annual Global Security Survey, which hits InformationWeek.com this weekend, often companies don't know when their IT systems have been breached and their customer data stolen and sold on the black cyber market. In the 2006 Annual Global Security Survey, only 8% of U.S. respondents said that identity theft had occurred within their organization. You'll be surprised to see where that percentage is in this year's survey results. Anecdotal evidence (including the TJX and Polo cases), suggests that companies should be more worried. It also suggests that law enforcement should be using every tool at its disposal to crack down on crooks looking to ruin your credit and, worse, the credit of your customers. The Secret Service's south Florida bust resulted in the recovery of about 200,000 stolen credit-card account numbers responsible for fraud losses roughly calculated to be more than $75 million. One of the keys to the arrests was information that the Secret Service obtained after earlier this year arresting a 30-year-old Florida man--who used the online handle "Blinky"--and his girlfriend. Blinky is accused of trafficking counterfeit credit cards and identifications for years over the Internet. His arrest turned up evidence of an organized fraud ring involving Cuban nationals operating in south Florida and led to the four arrests and indictments announced this week. The four fraudsters were sending large amounts of money via E-Gold accounts to known cyber criminals in Eastern Europe in return for tens of thousands of stolen credit card account numbers. The stolen credit card account numbers were then used to counterfeit credit cards in "plants" throughout southern Florida, the Secret Service said in a statement. But Douglas says it was his company that first brought Blinky to the attention of law enforcement in March 2006. Jackson told InformationWeek that investigators working for E-Gold began monitoring Blinky pursuant to an undercover operation it was conducting with law-enforcement agents from the U.S., U.K., and Russia. "In May 2006, working with records supplied by an exchange service that had sold [Blinky] some e-gold, we were able to supply general location (Miami), three confirmed phone numbers he used, and the usual IP/timestamp combos that even in this day and age are often useful," Jackson said. "In September 2006 we were able to set up a quasi-ambush where the guy was sent a Fed Ex package such that we were able to supply law enforcement with a specific physical location (a garage in Miami) and a time to nab him." Jackson sent me a copy of an e-mail exchange he claims to have had with a Secret Service contact in January 2006. In an e-mail Jackson ostensibly sent to the agency, he requested the Secret Service use information gathered by E-Gold investigators to crack down on a card-counterfeiting ring. An enthusiastic-sounding response from the agency informed Jackson his Secret Service liaison had made contact with "our guys at HQ and they will be in contact with you or your staff concerning this matter." Jackson told me that E-Gold was later "rebuffed" by the Secret Service and doesn't know if they followed up on the information he says he sent them. If you're curious about the Justice Department's side of this story, so am I. While I've reached out to them several times as the TJX case has unfolded, I rarely hear back from them. The TJX data breach has cost that company more than $20 million, and counting. For that company, law enforcement's successes are probably bittersweet. On the one hand, crooks are being put away. On the other hand, the evidence is mounting that their customers have become victims of identity theft. Still wondering whether law enforcement should be working with, rather than against, E-Gold? -- ----------------- R. A. Hettinga <mailto: rah(a)ibuc.com> The Internet Bearer Underwriting Corporation <http://www.ibuc.com/> 44 Farquhar Street, Boston, MA 02131 USA "... however it may deserve respect for its usefulness and antiquity, [predicting the end of the world] has not been found agreeable to experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

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