There seems to be more small business scams out there than ever. I am a QuickBooks ProAdvisor and every day I get an email inquiring about my services as do many other ProAdvisors. The scammers get our email address off the Intuit ProAdvisor site and send a request for services. Many of the requests are barely literate which is a clue that they aren't legitimate. Some ProAdvisors have responded to the requests and they get an email response with a PDF attached which they are supposed to open to get the details for the requested services. I don't any who have opened the attached PDF, but I am sure nothing good will come for it.
Another scheme is asking for you to verify your credit card or your email for your QuickBooks or other web based services you utilize. A clue there is that while the logo and details in the email look legitimate, the email address is not. Legitimate businesses would never initiate a verification via email.
A business I work with recently had a close call when the accountant received an email from the owner asking him to make a wire transfer of close to $100,000 to pay for some capital expenditures. The email address looked legitimate but the accountant wisely checked via phone as he was unaware of any planned expenditures.
The key in all of this is to read through any requests for information carefully and to take a moment to think if the request is reasonable and expected. Always call to verify that the request is legitimate before you respond and use a phone number you look up, not one provided in the questionable email.