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Points to be noted
* There are still hundreds of thousands of Web pages serving up buggy Shockwave Flash (.swf) files that could be exploited by hackers.
* Google dealt with its old buggy files by moving all Flash animation to Web servers that used numerical IP addresses rather than the Google.com domain. This made the cross-site scripting attack impossible on the Google.com Web site. Engineers there didn't even try to repair the buggy Flash files because it's "such a pain" to fix them.
* For Web sites like Google that contain sensitive customer information, they are a very serious problem, but they are not as critical as, say, remote-code execution flaws that would allow unauthorized software to run on a victim's PC.
* At least 10,000 buggy Web sites were still serving up buggy Flash files around mid-March, as developers worked to fix the problem.
Though adobe has upgraded its Flash Player to fix seven vulnerabilities in the graphics and video software widely used for interactive Web pages and banner advertisements.Adobe classifies the patches as "critical" and advises people upgrade to the latest version , 9.0.124.0. All of the vulnerabilities could allow a hacker to execute code on a machine.
One of the vulnerabilities allowed Shane Macaulay to win a laptop in the PWN 2 OWN hacking contest at last month's CanSecWest conference in Vancouver.Macaulay, a researcher with the Security Objectives consultancy, used the Flash flaw to break into a machine running Windows Vista. He later said 90 percent of computers worldwide were vulnerable.
Exploiting vulnerabilities in Flash software has become an increasingly popular vector for hackers to compromise machines for two reasons. Most Web browsers have the Flash Player installed, and malicious banner advertisements -- which can achieve wide distribution on Web sites pulling ads from a network -- can take advantage of those vulnerabilities.
"These vulnerabilities could be accessed through content delivered from a remote location via the user's web browser, e-mail client, or other applications that include or reference the Flash Player," Adobe wrote in its advisory.
If a malicious banner advertisement is widely distributed, a hacker has the potential to take control of many PCs. Lately, these "malvertisements" have been popping up everywhere, wrote Sandi Hardmeier, a Microsoft Most Valued Professional and security blogger.
On Sunday, Hardmeier wrote that she observed a fake FedEx banner ad that causes a user to be redirected to a Web site selling dodgy security software.
On Tuesday, security vendor Websense blogged about a malicious banner ad on the Web site of USA Today, a national U.S. newspaper. Websense wrote that if a user simply viewed the malicious ad, the person's browser window is immediately minimized, and a warning appears saying the computer is infected with malware, according to a description of the attack. Even if the user hits "cancel," the browser is redirected to another Web site selling spyware, which tries to download code to the PC.
In January, Adobe and other software vendors fixed some of their Flash development tools to stop hackers from creating malicious Shockwave Flash (.swf) files that enabled cross-site scripting attacks. That style of attack makes a browser execute malicious code via security weaknesses in a Web site.
The latest fixes focus solely on the Flash Player. One fix adds a feature Adobe calls a "cross-domain policy check." The Flash Player uses policy files, which allow it to use content from other domains. The feature allows for more richer capabilities in the player, wrote Deneb Meketa, a Flash engineer for Adobe, on the company's developer site.
But hackers can also build a policy file. If the policy file is accepted by the server, the hacker can then write a ".swf" file and load other data from outside the particular server's domain, which could lead to a security problem.
Studio 26 - flash. See description of 'medusae' for flash setup - I simply turned the black cardboard 90degrees for a horizontal alignment of the cutouts. I did brighten Bella's eye, because I liked the way the flash had given her a death glare and wanted to emphasize that.
It's an old Fujifilm canister with a 1cm-wide slot cut 3/4 down the length. If the top of the slot is left a bit narrow then the canister has less tendency to slip off sideways.
I saw this mod somewhere else on the 'net (can't remember where) so I can't claim credit for it.
Three Flash DIY_MG_6446
My Three Flash DIY setup:
two Youngno 560, One Canon 430EX
One Cybersync receiver connected with a radioshack 3-connectors miniphone adapter
Three hotshoe adapters
I HAVE IMPLEMENTED THE SUGGESTIONS OF www.flickr.com/people/54134914@N00/"STELLARVIEW" see BELOW:
Here is an enhancement for it....
Route the wires external to the junction box instead of through the center hole. Then add a Romex clamp fitting in the existing center hole and use it to clamp an umbrella in place.
Then get a blank cover for the box and drill a hole in the center of the cover that is slightly larger than your umbrella shaft. Run the umbrella shaft through the blank cover and out the back through the Romex connector and secure it at the desired point on the shaft. This will give you maximum stability for your umbrella.
tattoo flash
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Leo posando com a sua 7D.
Strobist: Aqui a gente tem três luzes. Um 580 EX II com um Ray Flash funcionando como beauty dish à direita e um pouco acima. Um 420 EX no chão, apontado para o fundo branco. Um 430 EX II com um Softbox III da Lumiquest à esqueda e meio atrás do modelo.
Edited EPIC image of the Earth with a flash of light over northern South America. Evidently, these flashes of light have been observed for a while; recently, it was discovered that the flashed of light are from ice crystals reflecting sunlight to the camera of the satellite.
I don't shoot many portraits but a friend asked if I could take a headshot for her bio/business cards.
I triggered 2 SB-80DXs with a couple of PocketWizard PlusX. One flash was bounced off of a 9-10' white ceiling camera right and another was hidden behind her with a grid aimed at the grey wall. Comments/critiques welcomed
Es una Kodak de finales de los 40 y principios de los 50 basada en un diseño anterior a la guerra, de los 30. Es pequeña, cabe en la palma de la mano, y ligera. Parece de 35mm sin embargo la película es ligeramente más grande que ésta. Probablemente no sea como la de tu padre, Montse, porque la mayoría de las cámaras de fuelles son más grandes, pero también es de fuelle.
Asignatura pendiente, modelar la luz a tu antojo, sigo tratando de aprender, para ello utilizo estos #speedlight #yongnuo by #simbiosc #simbiosctv
Aprendiendo lo esencial de una manera ajustada y con poco presupuesto #nosvemosenlastiendas
Taken in a studio using studio flashes to freeze the action of dancers making dance forms while in the air.
© 2017 Trevor Ager - Brightpix Photography
Modelo:Vanessa Castro
Vestuario:Jose Rivero
Maquillaje:Elvira Abad
Un flash con paraguas desde la izquierda.
A flash through an umbrella to the left.
the wind had driven a flurry of snow against the bedroom window in the night, it froze creating a pattern....this is taken from inside, I forgot to take the flash off but I like the result!
Recently purchased Nikon SB-700 flash and finally got a chance to try it at a night club event with quite difficult light setup.
In general I'm very satisfied with its automatic performance and work in synchronization mode with other flash units. Little -0.3 EV adjustments were required on both flash and camera.
All pictures are still quite affected by existing light in the club - I prefer to have realistic environment on my pictures.
Will add more samples later.
I picked up a large 60" grid from the bargain bin at a studio lighting shop in Melbourne on Saturday morning for ten bucks. Must of been a odd size that was hard to shift, having more large'ish squares than I've seen before. Nonetheless, my eyes bugged out when I saw it so had to grab it there and then. My back light has another grid I picked up, it's a 6.5" 10 degree honeycomb which unfortunately I coughed up full price for.........about 60 dollars (AU). It's fitted into a metal reflector from a scrapped traffic light, it was replaced for one with LED's. I fashioned the back of the dish to fit my 550EX and 580EXII. The cutout is lined with black mirco cellular foam/rubber to avoid scratching the speedlites.
The photo above was shot without the subject, I've slipped the subject in from the shoot in pretty much the same position reletive to the size of the lights as best I could, it's not perfect.
Moving the flash almost directly above the subject really changes (in my mind improves) the shadows. Still a lot of light on the background, though.
Taken in a studio using studio flashes to freeze the action of dancers making dance forms while in the air.
© 2017 Trevor Ager - Brightpix Photography
A flash flood is a rapid flooding of low-lying areas, rivers and streams, that is caused by the intense rainfall associated with a thunderstorm, or multiple training thunderstorms. Flash floods can also occur when ice jams block the normal course of a river, or when a man-made structure, such as a dam, collapses, i.e.; the Johnstown Flood of 1889. Flash flooding occurs when the ground becomes saturated with water that fell so quickly that it could not be absorbed. The runoff collects in low-lying areas and rapidly flows downhill with sudden rising water. Flash floods most often occur in normally dry areas that have recently received precipitation, but may also be seen anywhere downstream from the source of the precipitation (even dozens of miles from the source).
The U.S. National Weather Service gives the advice "Turn Around, Don't Drown" in reference to flash floods; that is, it recommends that people get out of the area of a flash flood, rather than trying to cross it. Most people tend to underestimate the dangers of flash floods.
Flash floods are extremely dangerous because of their sudden nature. Being in a vehicle provides little to no protection against being swept away; it may make people overconfident and less likely to avoid the flash flood. More than half of the fatalities attributed to flash floods, are people swept away in vehicles when trying to cross flooded intersections . As little as 6 inches of water can be enough to carry away most SUV-sized vehicles. In the United States, the National Weather Service (part of NOAA) reported in 2005 that in a national 30-year average more people die yearly in floods (127 on average) than by lightning (73), tornadoes (65), or hurricanes (16).
The desert southwestern U.S. is especially dangerous for both hikers and vehicles from the sudden onslaught of water from isolated thunderstorms over nearby mountains or mesas. These rains fill poorly-absorbent and often claylike dry riverbeds. A moving flood will usually be headed by a debris pile that may have wood branches and/or logs. Deep slot canyons can be especially dangerous to hikers as they may be flooded by a storm that occurs on a mesa miles away, sweeping through the canyon, making it dificult to climb up and out of the way to avoid the flood. Valley roads frequently cross dry river and creek beds without bridges. From the driver's perspective, there may be clear weather, when unexpectantly a river forms ahead of or around the vehicle in a matter of seconds.
From Wikipedia, the free encyclopedia