What about copyright and privacy?
I save and store your manuscript on a private computer and will never share or distribute your work. I will ask your permission before sharing any feedback or testimonial you provide to me and otherwise all communication and correspondence will be entirely confidential.
The vast majority of beta-readers are helpful and avid readers looking to provide writers with useful feedback on their work. However there is a lot of trust involved in sending someone your manuscript before it is published and concerns over privacy, plagiarism and copyright are a good reason to use a professional beta-reading service.