Skip Navigation

128 Bit Browser Encryption

Web Browser Requirements

My Account in TreasuryDirect requires a browser that supports 128-bit encryption. Opening an account, as well as buying securities and managing your account, involves the transmission of sensitive data, such as your Taxpayer Identification Number (e.g., Social Security Number) and your bank information. 128-bit encryption provides high-level security for these transmissions and is the industry standard for electronic financial transactions.

If your browser does not support 128-bit encryption, please visit the website that provides upgrades to your browser software. If you are using a Microsoft or Firefox browser, you should upgrade to Microsoft Edge or Firefox 64.0.2 or later:

Establishing a Secure Connection or TLS Connection

Transport Layer Security (TLS) is a widely-used protocol for sending confidential information securely over the Internet.

Technical Help Contacts

Please feel free to e-mail us.