For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
1942 Game - 1942 is a Vertically Scrolling Shoot ’em-up, Single and Multiplayer video game developed and published by Capcom.
Dropbox - Online Sync and File Sharing
Gradius - Gradius is a 1984 Arcade, Horizontally-Scroll, Single-player, and Shoot ‘em up video game developed and published by Konami.
Google Drive - Access and sync your files anywhere
Star Defender 4 - Star Defender 4 is an Arcade, Action, Vertical-scroll, Shoot ‘em up, and Single-player video game created by Awem.
Mega - Secure File Storage and collaboration