Set to "Solid" or a high number to treat files as one continuous stream, significantly improving compression for many small files. 2. The "Deep" Approach: Security & Encryption

To make the archive secure, you must use . Password: Use a strong, complex passphrase.

Check "Encrypt file names" (crucial). This prevents unauthorized users from even seeing what files are inside the archive without the password. 3. Creating Complex Archives (Command Line)

LZMA2 (optimal for multi-core processors) or LZMA.