Intuit will share payroll data from 1.4 million small businesses using QuickBooks Online Payroll with Equifax, a consumer credit bureau, unless customers opt out by the end of July. This change is part of a new service that will provide automated income and employment verification for employees. The move has raised concerns about data security and privacy, given Equifax's history of breaches. Intuit's decision may affect millions of small business employees who may not have a say in the matter.