The voting may be over in New Hampshire, but the debating isn't, as pollsters and rivals question the validity of Hillary Clinton's stunning upset victory last week.

According to reports, some of those who were surprised by the primary's results are now suggesting that the voting systems may have been hacked.

Pre-primary polls showed Senator Barack Obama firmly in the lead to win the vote, which Clinton won by a figure of 39 percent to Obama's 36 percent. Pollsters said their results had never been so far off before. A watchdog group called Black Box Voting noted that the 19 percent of manually cast ballots showed a marked difference in results from the 81 percent of votes that were tabulated electronically.

Following the vote, Clinton rival Dennis Kucinich called for a recount, while others, including a television documentary, revived some of the old claims against the Diebold voting machines, including allegations that the devices are easily hackable.

Another group of protesters noted that many problems were reported with the Diebold machines on the day of the primary, and that Diebold technicians were forced to break the security seals on some devices in order to repair them. Some claimed that a hack might have occurred at that point.

"Something stinks in New Hampshire," a commentator posted on the popular site Americablog.com.

— Tim Wilson, Site Editor, Dark Reading