LTD plans always contain an offset for Social Security disability benefits. Many people win Social Security disability benefits only after a lengthy struggle. In these cases there are large amounts of back benefits. When the back benefits are paid, the LTD insurer has its hand out wanting back what it had earlier paid. Collecting this offset from the insured might be a problem. Allsup describes its Overpayment Recovery Service as "Withdraw overpayment funds directly from claimant’s bank account using our patented electronic process." I cannot say exactly how this "patented electronic process" works, but it seems obvious that the notice that Social Security published has to do, in part, with what Allsup is doing.
Allsup has belatedly responded to my post.
The right of any person to any future payment under this title shall not be transferable or assignable, at law or in equity, and none of the moneys paid or payable or rights existing under this title shall be subject to execution, levy, attachment, garnishment, or other legal process, or to the operation of any bankruptcy or insolvency law.