Which is the correct method for Dr. Hartnell to securely send a report to Dr. Troughton?

The correct method for Dr. Hartnell to securely send a report to Dr. Troughton is to use LSU Health FileS to send a link to the report. This option ensures that the report is transmitted through a secure platform that is specifically designed for handling sensitive information, such as health-related data. LSU Health FileS provides a protected environment that complies with relevant regulations, such as HIPAA, ensuring that patient information remains confidential and secure during transit.

Using personal email addresses or services like iCloud does not provide the same level of security and could expose sensitive information to unauthorized access. Similarly, mailing a thumb drive, while it may seem secure, carries inherent risks such as loss or interception during transit, which could lead to a data breach. Therefore, utilizing the LSU Health FileS system is the most secure and compliant method for sharing sensitive reports.