CONCORD, N.H. (WCAX) - A Massachusetts woman has been arrested in a scam that cost elderly New Hampshire residents thousands of dollars.The New Hampshire attorney general says Rachel Chen, 25, of North Andover, Massachusetts, has been indicted in three counties for her role in tech support scams.In our region, a Grafton County senior was scammed out of $20,000 after being tricked into believing their bank account was hacked.The attorney general says Chen didn’t work alone but is the one who picked up the cash from the victim.Chen is due in court later this month.