What is the best method for users to securely submit malware samples?

As the title says, I’m wondering if there are any industry standards or best practices for how to actually move malware samples, memory dumps, etc from place to place? The idea would not be an end user really but rather forensic analysts being able to transfer artifacts they’ve extracted to dedicated reverse engineering teams. Worth mentioning that the RE group would be a subcontractor and needs to have a system for submitting tickets as well as files in a secure …

cybersecurity malware