Easiest way is to attempt t o log in to intuit.com with a bad password and follow the prompts to get a code on your phone and then enter a new password – did so myself this morning

Resolution for 'code on your phone issue: 'How can I change my Intuit password?' available: Yes.

The code on your phone issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the code on your phone issue yourself by looking for a resolution described in the article. If it is a complex code on your phone issue or you are unable to solve the issue, you may contact us by clicking here or by using other code on your phone support options.

For more information about resolving issues related to code on your phone in Quickbooks/QBO or to get support for the issue 'How can I change my Intuit password?', click the link below: