Final answer:
The most secure and company-policy-aligned methods for sharing a large, sensitive file include using a secure file-sharing platform with end-to-end encryption (Option A), uploading the file to a company-approved secure cloud storage and sharing the link via a secure communication channel (Option B), and using a company-provided VPN for direct file transfer (Option D).
Step-by-step explanation:
If a co-worker needs to share a sensitive file that is too large for encrypted email, the safest options that would likely adhere to a company's security policies include:
- Using a secure file-sharing platform with end-to-end encryption.
- Uploading the file to a company-approved secure cloud storage and sharing the link through a secure means of communication.
- Utilizing a company-provided VPN for a direct file transfer.
Option (a) leverages secure file-sharing services designed for privacy and security, ensuring only authorized parties can access the file. Option (b) involves using cloud storage solutions, which provide secure access and ensure the latest document version is always available. Option (d) provides security through the VPN's encrypted tunnel, making it suitable for transferring sensitive documents securely.
On the other hand, sending the file via standard email with password protection (option c) might not be secure enough, as the file itself isn't encrypted, only the access to it is, and it may not comply with stricter security standards.
Thus, the correct answer is options A, B, and D.