However, the problem you have with FTPS and SFTP is although the files are securely transferred to your server,...
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
once they're uploaded, anyone who accesses the server can see them, because they aren't encrypted. With this in mind, I prefer your first solution, which is to have your hosts encrypt the files using the recipients public PGP key. This option not only ensures the files are encrypted while in transit, and when at rest, but also only the intended recipient can decrypt and view the files. The best solution to your problem, however, is probably a combination of both PGP-encrypted files and a secure FTP connection. Because even if your PGP encrypted files are secure, if your hosts use plain FTP to upload files to your server the username and password used to access the server are sent in the clear. An attacker could potentially steal this information and use it to gain access to the FTP server and upload malicious files or delete existing files.
Dig Deeper on IPv6 security and network protocols security
Related Q&A from Michael Cobb
Microsoft collects data using Windows 10 telemetry features. Expert Michael Cobb explains what type of data is collected, and whether enterprises ...continue reading
Some malicious apps can hijack smartphones and expose those devices with open ports. Expert Michael Cobb explains how this happens and how users can ...continue reading
Smartphone users could be at risk of memory corruption attacks because of a baseband vulnerability. Expert Michael Cobb explains the attack and how ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.