deficiency and significant deficiency, how auditor approach it differently?
A deficiency, or a combination of deficiencies, in internal control over financial reporting that is less severe than a material weakness, yet important enough to merit attention ****by those responsible for oversight**** of the registrant’s financial reporting. Adopted from page 10 SEC Article linked below
Check Page 4 discussion part in the link Definition of the term Significant Deficiencies
Go through page 4 and 5.
I hope this will help you.