For example, on an insurance claim form template, an insurance adjuster can circle areas of damage on a picture of a car. This allows users to draw directly on top of the picture with their tablet pen. Depending on your needs, you can add a picture to the background of this control. Users can draw or write in the empty ink picture control when they fill out forms that are based on your form template. When you add an ink picture control to your form template, InfoPath inserts an empty ink picture control by default. In the following example, an ink picture control is used to collect a sketch of an automobile accident on an insurance claim form template. Also, because the encoded data is saved as a valid GIF image, it can be repurposed in a database or other environment. By preserving the ink, you enable the user to edit it again later. Store the user's ink as strokes - that is, as binary data that is encoded in the user's form (.xml) file. This can be useful when you want users to be able to sketch something that is fairly complicated or technical, such as a mathematical formula or a diagram of a particular business process. Provide Tablet PC users with a dedicated field on the form where they can write or draw. Use an ink picture control when you want to: “It’s not one of these ‘sky is falling’ vulnerabilities, but it’s not good.If you want Tablet PC users to be able to draw and write on top of a picture or in a blank space on a Microsoft Office InfoPath form, you can use an ink picture control on your form template. “This has triggered some interesting conversations about API design and what do you do to teach people to avoid this sort of vulnerability in the future? This is not something that we train people to deal with,” Murdoch says. And Murdoch emphasizes that while he sees aCropalypse as a problem for users whose affected photos are already out in the world, its biggest impact may come from the discussions it has raised about how to promote better security practices in API development and implementation. The thumbnail vulnerability Murdoch found in 2004 was conceptually similar to aCropalypse from a data privacy standpoint but had very different technical underpinnings because of issues in application programming interface design. What is not checked is whether there is accidentally extra data stored.” You save an image, you can open the image, and then you’re done. “And I think the reason is because when software is written, it’s tested to make sure that the thing you expect is there. “This isn’t the first time I’ve seen this sort of vulnerability,” Murdoch says. Steven Murdoch, a professor of security engineering at University College London, notes that in 2004 he discovered a vulnerability in which an older version of an image was stored in the thumbnail data for the image even after it had been altered. The researchers point out, though, that this is not true of all platforms, including Discord.Īs a Discord user, Buchanan say he kept seeing people posting cropped screenshots, and it was really hard to not say anything before the vulnerability was publicly disclosed. Images posted to sites like these are not at risk,” Google spokesperson Ed Fernandez says in a statement. “As part of their existing compression process, apps and websites that recompress images, like Twitter, Instagram, or Facebook, delete extra data automatically from images uploaded.
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