According to the Freedom of the Net 2018 report, "The Estonian e-governance system is one of the most advanced in the world." Also, the Estonian e-voting system has nothing to do with the system used by the Reform Party.
According to the report by the University of Tartu, e-voting could mobilize new voters and people of higher socio-economic status who are more likely to lean to the right of the political spectrum. "The only plausible explanation for the aggregate level differences in party vote tallies depending on the mode is therefore that a large share of typical voters have simply switched from paper voting to e-voting and this process is non-random, meaning a larger share of supporters of particular parties have done so. Should e-voting be discontinued, these people would simply switch back to paper voting", the report said.
In 2011 the Estonian Information System Authority, State Electoral Office and police discovered an anomaly caused by mass voting connected to a single IP-address. Although the voting is secret, the Estonian Information System Authority can make sure who is behind an (accidental) attack to the system and thus the lady was indeed contacted.