I read the last day or two not only paper ballots, but you must show ID, name is checked off, and the are counted by volunteers with people watching. Sounds MUCH better.
That’s how the US used to do it I believe
Except in Northern Ireland, you don’t have to show ID yet (the other parts of the UK are moving in that direction but it hasn’t happened yet) - but yes, only paper ballots, and they are counted by officially neutral volunteers with scrutineers from all sides watching the count.
Ballot papers also bear numbers which can be matched to an individual voter in a case where fraud is suspected. This is controversial as technically it weakens the idea of a secret ballot, but it’s very rare (and there are very strict rules) for a comparison to be made. In fact, it has never happened at a Parliamentary election, although it has happened a couple of times in council elections when people won by very small margins (there was a case in a council election in the 1970s when an eligible voter was only able to cast a provisional ballot because they told her she had already voted - her name had been crossed off - and then one of the candidates in that election won by only one vote. The voter raised the issue, and they used the numbers to identify the vote in question and discovered an ineligible voter with the same name had voted earlier in the election which was why her name was crossed off (this wasn’t strictly speaking fraud - the earlier voter had asked if her name was on the list and somebody didn’t check both name and address and told her it was, so she thought she had a right to vote). The invalid vote was removed from the count and the valid provisional vote was substituted - and in this case because the valid vote was for the other candidate, the election result did change).