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<p>[QUOTE=&quot;calcol, post: 26161875, member: 77639&quot;]Recently there was a thread on possible insecurities in posting slab pics with the label visible.&nbsp; However, you may be posting data about yourself with any picture you put online. The broad term for nonobvious data in pics is metadata (also called embedded data).&nbsp; There are a few standard ways of embedding data which your camera device or computer might be adding.&nbsp; By adjusting settings, you can prevent this.&nbsp; Many image viewing and editing programs can detect and remove metadata added in a standard way.&nbsp; I’ve suggested to Peter (owner of cointalk) that images on cointalk be routinely scanned and standard metadata be removed.</p><p><br /></p><p>However, there are many nonstandard ways to add metadata.&nbsp; Sometimes this is done deliberately as a means to identify ownership of the image.&nbsp; Companies that own lots of images that are online routinely use proprietary metadata and scan-bots to find other companies or individuals who may be using the images without permission.&nbsp; A more nefarious use is by hackers to gather information on individuals regarding their personal info and valuable things (jewelry, coins, art, guns, etc.) they might own.&nbsp; If your camera device or computer is hacked, then malware that adds nonstandard metadata to all images can be installed.&nbsp; The metadata can then be used to track any images you post online back to you.</p><p><br /></p><p>The image below has four messages about coins embedded in it.&nbsp; Feel free to download it and try to find the messages.&nbsp; Two are easy to find, one is medium, fourth is hard. If you find any, please post.</p><p><br /></p><p>Cal</p><p>[ATTACH=full]1670243[/ATTACH][/QUOTE]</p><p><br /></p>

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