Mac system safe. What do you mean by emptying the trash?

Many users who just use a Mac computer will see the trash basket and the safe emptying of the trash two options when using the Recycle Bin, the Mac's trash. So, what's the difference between the two? Mac system security Clear the trash. In fact, the so-called "safe clearing the Trash", is the deletion of the storage location of the file repeatedly with random data overlay to write several times, so you can not use any civil level tools to recover purged files. If you simply "clear the trash", there is a great chance that the file will recover.

If you want to delete more sensitive files, such as electronic bank statements, tax returns, documents that contain ID numbers or passwords, you can choose to have the Mac clear the trash in a safe manner. This option allows the Mac to overwrite deleted files, which greatly reduces the likelihood that others will recover them. This process may take some time, depending on what is deleted

Safe emptying of waste basket

While holding down the trash icon in the dock bar for a long time, the option to "clear the trash" appears in the pop-up menu, and if you hold down the command key, a "safe emptying of the trash" appears in the menu and click on it. You can also open a Finder window first, and then find the "safe emptying trash" option on the Application menu.

Always perform safe emptying of trash

If you want to set the safe emptying trash always, open the Finder window and tap Preferences on the Application menu, and then select the Advanced tab and select the check box next to the safe emptying trash.