Beginning October 24, 2016, the IRS will be strengthening the identity authentication process of its e-services platform. If you currently use any IRS e-services, you must re-register and validate your identity to continue having access to any e-services products. This will involve a Secure Access process to validate your identity, which includes identity proofing, financial verification and mobile phone verification. For details, click here: Important Update for Your e-services Account.