Absentee is voting by mail ... and does have safeguards. Must obtain ballot from the town clerk, checked by the town for voter registration, checked by the town moderator and town clerk after the election. Is anything 100% ...
Then again, maybe all the town officials are crooks!
A lot easier to falsify "in-person" voting, than by absentee ballot.
http://www.gencourt.state.nh.us/rsa/.../657/657-4.htm
https://www.moultonboroughnh.gov/sit...state_5-22.pdf
Next ....