There are numerous layers to background checks, including verification of identity, work experience, education and training, professional memberships, licences, criminal histories, and so forth.
It has been noted that all businesses have a large workforce, that they collaborate closely, and that maintaining the confidentiality of business matters is quite challenging. When an organisation obtains verification (such as academic, employment, ID, and criminal verification), it is almost impossible to keep employee screening information secret or biased.