The vast majority of software "activators" are wrappers for malicious software. Once you double-click the file, it may silently install malware in the background while pretending to crack QuickBooks.
Instead of using unauthorized activators, you can use these official methods provided by Intuit Support : Intuit Quickbooks Activator 0.6 Build 70.exe Free
QuickBooks is used to store highly sensitive data: bank accounts, employee social security numbers, tax paperwork, and client billing addresses. Running an unauthorized executable grants the software full administrative access to your local machine. Malicious software can silently stream your database information back to remote command servers, resulting in catastrophic identity theft or financial fraud. 3. No Access to Updates or Tax Tables The vast majority of software "activators" are wrappers