The worst time to send an email is between 5pm and 6pm on Thursdays, research has found.
Web performance monitoring firm Epitiro said that an estimated seven per cent of emails are either severely delayed or lost altogether during this 'rush hour'.
This is due to the number of people using the web at that particular time, Epitiro said.
And it's not just the day of the week or time of day that can affect email delivery times - the time of year is also a factor too.
Epitiro found that in the autumn months, email delivery times got slower, with eight per cent taking longer than three minutes to arrive.
"Email delivery speed is a very important factor in internet communications, not least for the credibility of an online business," said Gavin John of Epitiro.
"When customers shopping online are told to await email confirmation of a purchase, they expect this to arrive in no more than a couple of minutes. If an email takes longer than three minutes to arrive, many customers will worry that something has gone wrong," Johns continued.
Sunday, July 6, 2008
Google gives away free Web app security scanner
Google has released for free one of its internal tools used for testing the security of Web-based applications.
Ratproxy, released under an Apache 2.0 software license, looks for a variety of coding problems in Web applications, such as errors that could allow a cross-site scripting attack or cause caching problems.
"We decided to make this tool freely available as open source because we feel it will be a valuable contribution to the information security community, helping advance the community's understanding of security challenges associated with contemporary web technologies," wrote Google's Michal Zalewski on a company security blog.
Ratproxy -- released as version 1.51 beta -- is quick and less intrusive than other scanners in that it is passive and does not generate a high volume of attack-simulating traffic when running, Zalewski wrote. Active scanners can cause problems with application performance.
The tool sniffs content and can pick out snippets of JavaScript from style sheets. It also supports SSL (Secure Socket Layer) scanning, among other features.
Since it runs in a passive mode, Ratproxy highlights areas of concern that "are not necessarily indicative of actual security flaws. The information gathered during a testing session should be then interpreted by a security professional with a good understanding of the common problems and security models employed in web applications," Zalewski wrote.
Google has posted an overview of Ratproxy as well as a download link to the source code. Code licensed under the Apache 2.0 license may be incorporated in derivative works, including commercial ones, but the origin of the code must be acknowledged.
Weak web application security continues to embarrass companies, potentially causing the loss of customer or financial data.
A 2006 survey by the Web Application Security Consortium found that 85.57 percent of 31,373 sites were vulnerable to cross-site scripting attacks, 26.38 percent were vulnerable to SQL injection and 15.70 percent had other faults that could lead to data loss.
As a result, security vendors have moved to fill the need for better security tools, with large technology companies acquiring smaller, specialized companies in the field.
In June 2007, IBM bought Watchfire, a company that focused on Web application vulnerability scanning, data protection and compliance auditing. Two weeks later, Hewlett-Packard said it would buy SPI Dynamics, a rival of Watchfire whose software also looks for vulnerabilities in Web applications as well as performing compliance audits.
Ratproxy, released under an Apache 2.0 software license, looks for a variety of coding problems in Web applications, such as errors that could allow a cross-site scripting attack or cause caching problems.
"We decided to make this tool freely available as open source because we feel it will be a valuable contribution to the information security community, helping advance the community's understanding of security challenges associated with contemporary web technologies," wrote Google's Michal Zalewski on a company security blog.
Ratproxy -- released as version 1.51 beta -- is quick and less intrusive than other scanners in that it is passive and does not generate a high volume of attack-simulating traffic when running, Zalewski wrote. Active scanners can cause problems with application performance.
The tool sniffs content and can pick out snippets of JavaScript from style sheets. It also supports SSL (Secure Socket Layer) scanning, among other features.
Since it runs in a passive mode, Ratproxy highlights areas of concern that "are not necessarily indicative of actual security flaws. The information gathered during a testing session should be then interpreted by a security professional with a good understanding of the common problems and security models employed in web applications," Zalewski wrote.
Google has posted an overview of Ratproxy as well as a download link to the source code. Code licensed under the Apache 2.0 license may be incorporated in derivative works, including commercial ones, but the origin of the code must be acknowledged.
Weak web application security continues to embarrass companies, potentially causing the loss of customer or financial data.
A 2006 survey by the Web Application Security Consortium found that 85.57 percent of 31,373 sites were vulnerable to cross-site scripting attacks, 26.38 percent were vulnerable to SQL injection and 15.70 percent had other faults that could lead to data loss.
As a result, security vendors have moved to fill the need for better security tools, with large technology companies acquiring smaller, specialized companies in the field.
In June 2007, IBM bought Watchfire, a company that focused on Web application vulnerability scanning, data protection and compliance auditing. Two weeks later, Hewlett-Packard said it would buy SPI Dynamics, a rival of Watchfire whose software also looks for vulnerabilities in Web applications as well as performing compliance audits.
Tuesday, September 4, 2007
Google Earth’s Hidden Surprise: A Flight Simulator
We’ve always known that Google has wanted to challenge Microsoft’s desktop dominance in a number of areas, but to date we didn’t know that extended to gaming.
Hidden inside Google Earth is a secret Flight Simulator that takes full advantage of Google’s extensive satellite imagery.
To access the hidden feature, open Google Earth and hit Command+Option+A (note it must be capital A) or Ctrl+Alt+A if you’re using a Windows Machine.
The Google Earth Flight Simulator comes with two aircraft options, a F16 Viper and the more manageable SR22 4 seater. Players have the option of commencing the game from their current location in Google Earth or can pick from a list of pre-determined runways. Control instructions can be found here.
Overall the game play is fairly simple in terms of control, but the striking difference is flying over real pictures of locations. I took a quick flight from San Francisco International, headed North to the Golden Gate then turn back over the city before heading towards the Valley. It wasn’t perfect, but it was as good visually as the paid Microsoft Flight Simulator, and in terms of actually presenting real objects it was better.
Hidden inside Google Earth is a secret Flight Simulator that takes full advantage of Google’s extensive satellite imagery.
To access the hidden feature, open Google Earth and hit Command+Option+A (note it must be capital A) or Ctrl+Alt+A if you’re using a Windows Machine.
The Google Earth Flight Simulator comes with two aircraft options, a F16 Viper and the more manageable SR22 4 seater. Players have the option of commencing the game from their current location in Google Earth or can pick from a list of pre-determined runways. Control instructions can be found here.
Overall the game play is fairly simple in terms of control, but the striking difference is flying over real pictures of locations. I took a quick flight from San Francisco International, headed North to the Golden Gate then turn back over the city before heading towards the Valley. It wasn’t perfect, but it was as good visually as the paid Microsoft Flight Simulator, and in terms of actually presenting real objects it was better.
IBM stores data on an atom
As researchers look for ways to replace silicon in order to shrink chips, IBM has been able to perform functions like switching and data storage on atoms and molecules
IBM has demonstrated how to perform certain computer functions on single atoms and molecules, a discovery that could someday lead to processors the size of a speck of dust, the company said Thursday.
Researchers at IBM's Almaden Research Center in California developed a technique for measuring magnetic anisotropy, a property of the magnetic field that gives it the ability to maintain a particular direction. Being able to measure magnetic anisotropy at the atomic level is a crucial step toward the magnet representing the ones or the zeroes used to store data in binary computer language.
In a second report, researchers at IBM's lab in Zurich, Switzerland, said they had used an individual molecule as an electric switch that could potentially replace the transistors used in modern chips. The company published both research reports in Friday's edition of the journal Science.
The new technologies are at least 10 years from being used for components in commercial products, but the discoveries will allow scientists to take a large step forward in their quest to replace silicon, said IBM spokesman Matthew McMahon.
To build faster, smaller chips, IBM and other chip vendors like Intel and AMD have shrunk the dimensions of chip features from 90 nanometers to 65nm in the current generation of chips and plan to continue to 45nm and 32nm in coming years. The problem is that wires built from silicon tend to leak more electricity at each step on that scale and will eventually reach a limit where they are no longer useful.
"Across all our areas of nanotechnology research, we're trying to determine the new kinds of materials we can use in computing when silicon reaches its fundamental limits. The ultimate goal is molecular-level computers, but the interim products will probably be hybrids with current technology, using things like carbon nanotubes," McMahon said.
IBM defines nanotechnology as work done at a scale of 100nm or smaller. At that scale, scientists must use a tool called the STM (scanning tunneling microscope) to photograph and manipulate individual atoms as they did in their latest research. Their next challenge is to find a way to make these laboratory demonstrations work at room temperature, he said.
Having measured the magnetic anisotropy of a single atom, "their next step is finding atoms that can do it at stable temperatures that are suitable for storage devices. If they can find that, it's still a decade out from commercialization," he said.
The Zurich researchers also developed a technique for using a molecule containing two hydrogen atoms as a switch, either on its own or with an adjacent molecule. They are now looking to apply the method to many other molecules, enabling the system to work as a collection of logic gates, the building blocks of microprocessors.
Even if the teams reach those goals, they must find a way to manufacture the systems on a large scale, instead of moving single atoms with the STM. One possibility is to use the process of self-assembly, where atoms under certain conditions will naturally form the desired shapes. In May, IBM said it had used that approach to insulate the wires on a chip by creating trillions of tiny, vacuum-filled holes around each one.
By Ben Ames, IDG News Service
IBM has demonstrated how to perform certain computer functions on single atoms and molecules, a discovery that could someday lead to processors the size of a speck of dust, the company said Thursday.
Researchers at IBM's Almaden Research Center in California developed a technique for measuring magnetic anisotropy, a property of the magnetic field that gives it the ability to maintain a particular direction. Being able to measure magnetic anisotropy at the atomic level is a crucial step toward the magnet representing the ones or the zeroes used to store data in binary computer language.
In a second report, researchers at IBM's lab in Zurich, Switzerland, said they had used an individual molecule as an electric switch that could potentially replace the transistors used in modern chips. The company published both research reports in Friday's edition of the journal Science.
The new technologies are at least 10 years from being used for components in commercial products, but the discoveries will allow scientists to take a large step forward in their quest to replace silicon, said IBM spokesman Matthew McMahon.
To build faster, smaller chips, IBM and other chip vendors like Intel and AMD have shrunk the dimensions of chip features from 90 nanometers to 65nm in the current generation of chips and plan to continue to 45nm and 32nm in coming years. The problem is that wires built from silicon tend to leak more electricity at each step on that scale and will eventually reach a limit where they are no longer useful.
"Across all our areas of nanotechnology research, we're trying to determine the new kinds of materials we can use in computing when silicon reaches its fundamental limits. The ultimate goal is molecular-level computers, but the interim products will probably be hybrids with current technology, using things like carbon nanotubes," McMahon said.
IBM defines nanotechnology as work done at a scale of 100nm or smaller. At that scale, scientists must use a tool called the STM (scanning tunneling microscope) to photograph and manipulate individual atoms as they did in their latest research. Their next challenge is to find a way to make these laboratory demonstrations work at room temperature, he said.
Having measured the magnetic anisotropy of a single atom, "their next step is finding atoms that can do it at stable temperatures that are suitable for storage devices. If they can find that, it's still a decade out from commercialization," he said.
The Zurich researchers also developed a technique for using a molecule containing two hydrogen atoms as a switch, either on its own or with an adjacent molecule. They are now looking to apply the method to many other molecules, enabling the system to work as a collection of logic gates, the building blocks of microprocessors.
Even if the teams reach those goals, they must find a way to manufacture the systems on a large scale, instead of moving single atoms with the STM. One possibility is to use the process of self-assembly, where atoms under certain conditions will naturally form the desired shapes. In May, IBM said it had used that approach to insulate the wires on a chip by creating trillions of tiny, vacuum-filled holes around each one.
By Ben Ames, IDG News Service
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