![]() ![]() It’s a popular and extremely strong encryption technique used in many programs. Unlike ZipCrypto, AES was not designed for ZIP files. Please remember, while the attachment is encrypted, the content of the email message will not be encrypted so it is important that any sensitive information be contained in the attachment (encrypted document).You’d be far safer using the other option, AES-256. Known products compatible with IRS include, but are not limited, to WinZip and SecureZip. Refer to your specific file compression software user guide for instructions on how to compress and encrypt files. Do NOT provide the password or pass phrase in the same email containing the encrypted attachment. Communicate the password or pass phrase with the Safeguards Office through a SEPARATE email or via a telephone call to your IRS contact person.Ensure a strong password or pass phrase is generated to encrypt the file and.Use a strong 256-bit encryption key string,.Encrypt the compressed file using Advanced Encryption Standard (AES),.In order to protect potentially sensitive agency information, the IRS Office of Safeguards requests agencies to adhere to the following protocols when transmitting electronic documentation:
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