The information is not public record in Israel. Apparently, the parties voted themselves the right to that data when the election cycle starts (6 months or so

The information is not public record in Israel. Apparently, the parties voted themselves the right to that data when the election cycle starts (6 months or so before the actual elections, or something like that), under the promise that "they will keep it safe, and delete it afterwards, and only use it themselves". Needless to say, it has leaked out to marketers/private-investigators/bittorrent in basically every election cycle so far.