The 220.127.116.11 version of Akeeba SiteDiff is provided as a free download on our website. The following versions: 3.1, 3.0 and 2.5 are the most frequently downloaded ones by the program users. This free software is an intellectual property of Akeeba Developers. Our built-in antivirus checked this download and rated it as virus free. Akeeba SiteDiff lies within System Utilities, more precisely Backup & Restore. AkeebaSiteDiff.exe is the common file name to indicate the Akeeba SiteDiff installer.
From the developer:
No matter how careful you are, your site is always susceptible to a hacking attempt. The best way to figure out if there has been a hacking attempt against your site is to compare the files between two successive backups and spot any added, removed or modified files.
You may want to check out more software, such as Akeeba eXtract Wizard, which might be similar to Akeeba SiteDiff.