![]() ![]() If I'm an app, I can't say "This is my folder. FAT-based systems don't support file and folder permissions. What good is a portable drive that can't be read, right? But there's a catch. If you want removable storage that can be read anywhere, understand that it's not going to be secure.įAT-based file systems - that's what your SD card is formatted to - are universal on Windows, Apple OSX and (most) Linux machines. Because something like 96 percent of all the computers out there that aren't some sort of server run Microsoft Windows, you need to make sure your SD card will work with them. You expect an SD card to just work when you plug it into a computer. One of the reasons things have to change so drastically on the security-front is because of Unix-style user and group permissions, and the file system of your SD card. Do you want it easy? Or do you want it secure? It was a complete and total security nightmare, and why a lot of people - including yours truly - did not want phones with SD cards. That includes files that could be read when another app starts up and affect the settings or way that app works. Yes, previously any application that declared permission to read and write to the SD card was allowed to write files to any folder - including your system folders, and any folder something like a banking app might have made. The other side of the coin is that Jerry's Not Awesome App that steals your data no longer has write access to every file and folder on the SD card. The old method of putting anything anywhere you want is gone, forever. The folder is part of the app, and if you uninstall it, the folder goes, too. If programmed right, it could save copies of the pictures to Jerry's Awesome Photo Viewer's own folders on the SD card. But it can't move or save the pictures themselves to folders - including the Pictures folder - on the SD card because it does not "own" those folders. ![]() This means that Jerry's Awesome Photo Viewer app can still scan your entire system for images, build a thumbnail database of them all and save it to a folder on the SD card. There also are some serious security concerns that were addressed by not letting an app write files just anywhere. ![]() This keeps things "tidy." Apps aren't dumping files everywhere on the card - something we've all encountered - and instead have one central location to put all their files. Some apps have worked with that, many others are just broken. Google made things neater and more secure. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |