Security researchers have raised some concerns about Mega’s security features. The file-storage and sharing service has been criticized by security researchers. Mega officials acknowledged that some of the security risks pointed out by researchers are valid. But they promised some improvements to the site’s security. A password recovery feature will be implemented in the near future, they said. The main HTTPS server that uses a SSL certificate with a 2048-bit key is used to verify the integrity of the JavaScript code served from secondary HTTPS servers that use 1024-bit keys.”]