The Massachusetts Society for the Prevention of Cruelty to Children joins the ranks of those who experience a mailing error that exposes vendors’ Form 1099 to others. The Form 1099 contained vendors’ names, addresses, monies earned, and Social Security numbers. In this case, some vendors received their own Form 1099 as well as a second 1099 form that should have been sent to another vendor. See MSPCC’s notification here (pdf).