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How can people be expected to know about security/privacy issues that are actively silenced or never talked about?

Posted on January 11, 2021 by Kayven A

I grew up with computers. I had no life as a kid, and none today. In many ways, I’m a stereotype. I’m now eerily rapidly approaching 40.
Yet it was only in the last 5-7 years or so that I started to understand that all kinds of image and v… Continue reading How can people be expected to know about security/privacy issues that are actively silenced or never talked about?→

Is it possible for someone to "peel back" an image layer?

Posted on January 10, 2021 by tchakravarty

I am on a Windows 10 machine using Chrome (latest updates). I took a screenshot of Instagram, because I was having problems logging in, and then using Paint 3D applied a black rectangle to hide my username on the screenshot:

My worry is t… Continue reading Is it possible for someone to "peel back" an image layer?→

Cloud service will turn any photo into 3D holographic image

Posted on January 6, 2021 by Paul Ridden

Last month, the Looking Glass Factory launched on Kickstarter to fund production of a personal holographic image display called the Portrait. Now the company has announced a new cloud-based service capable of adding depth to any two-dimensional photo t… Continue reading Cloud service will turn any photo into 3D holographic image→

.htaccess to stop scripts with image extensions

Posted on December 31, 2020 by paulkruger

I use a .htaccess file in my images directory to block scripts from running. I exclude .php .cgi and so on. But some malware is disguised by naming them with an image extension. I did not previously add various image extensions fearing it… Continue reading .htaccess to stop scripts with image extensions→

Does limiting size of images prevents buffer overflow?

Posted on December 22, 2020 by Dr J

I am writing an app that serves images to clients.
The app is written mostly in python. I store the images in AWS s3 and serve the clients them directly from there.
Am I vulnerable to buffer overflow attacks?
If an image is bigger than 500… Continue reading Does limiting size of images prevents buffer overflow?→

Virus scanning uploaded images to database

Posted on December 20, 2020 by DaddyMike

I have a database for a chat app to which users can upload images. These images get scanned before they are made available to other users in a conversation. But when the antivirus gets an update, should I rescan images which have already b… Continue reading Virus scanning uploaded images to database→

Is my image scrambling implementation actually secure? [closed]

Posted on December 11, 2020 by DasBeasto

I recently developed an application that lets you "hide an image in plain sight" by obfuscating your image in a way that is unrecognizable so that you can save it or share it without worry. But then can be reversed so that it’s b… Continue reading Is my image scrambling implementation actually secure? [closed]→

CSP allowing Base64 encoded images without unsafe-eval

Posted on December 11, 2020 by user1709076

If I allow base64 encoded images to load on my website, but I do not have unsafe-eval enabled, nor have I allowed ‘inline-script’ would my site still be at risk by allowing base64 encoded image data to be painted onto images that might hav… Continue reading CSP allowing Base64 encoded images without unsafe-eval→

Are PPM or BMP images safer than JPEGs or PNGs?

Posted on November 27, 2020 by reed

I was reading this question ( How to check if an image file is clean? ) and forest’s answer suggested converting the image to a "trivial pixelmap format, such as PPM". Such a format was considered "simple enough that it woul… Continue reading Are PPM or BMP images safer than JPEGs or PNGs?→