Deposits at St. Mary's Credit Union are insured by the National Credit Union Administration (NCUA) to at least $250,000. Excess deposits are insured through the Massachusetts Share Insurance Corporation (MSIC). It's important to know that not one penny of insured savings has ever been lost by a member of a federally insured credit union. So relax ... your deposits are fully insured at St. Mary's Credit Union. More information about deposit insurance is available on the NCUA's website and the MSIC's website.