CeCe Morken, EVP Intuit's ProConnect Group, says the effort to improve security is ongoing. 

"We're continuing to invest in new measures to ensure our products have industry-leading fraud protection while driving industry-wide standards that will help further protect taxpayers and tax professionals," Morken said in a prepared statement.

Intuit is requiring end-user authentication to login and access all desktop tax software packages. Users must create unique user names and passwords and after they have been in active for 30 minutes, they must reauthorize their usage to access the software. Passwords, which will expired every 90 days, must now be at least eight characters long and include a combination of upper and lower case letters, numbers and special characters.

The company is also implementing Captcha technology that helps to determine a person, not a robot is signing in.

Intuit implemented multi-factor authentication in ProConnect Tax Online last year. When a customer logs on, Intuit automatically sends a unique, six-digit code to a pre-designated, trusted device or email account to be used in combination with their password to access accounts.

On the consumer side, those returning to login to a TurboTax account now have the option of using a verified phone number for a trusted device, which can receive verification codes by text or voice. Customers can also now view security and account emails coming from TurboTax to help determine if an email is from Intuit. The same requirements for strong passwords also apply to TurboTax accounts.