The issue focused on tools which exist for recovering deleted files from computers that have been wiped clean by viruses or malware. https://wiki.ubuntu.com/Software/NetworkSecurity/Digital forensic recovery tools Here are some links for Windows users: https://securelist.com/tools/digital-forensic-tools/ https://technet.microsoft.com/en-us/library/hh963561.aspx https://technet.microsoft.com/en-us/library/hh9744