“The shuttering of a widely used military file-sharing service last month has left the services without an online option for transferring sensitive unclassified files, so they’re turning to CDs, DVDs, postal mail and even fax machines. Both the Navy and Marine Corps issued official guidance late last month saying optical discs are the only way to securely send large files that contain private information like Social Security numbers or medical data, after the military disabled the Army’s Aviation and Missile Research, Development and Engineering Center Safe Access File Exchange, or AMRDEC SAFE. Neither the Air Force nor the Army have issued similar guidance, but officials with those services said they also lack an online alternative.”
Source: CDs, faxes make comeback as military file-sharing service taken offline – News – Stripes