Years ago Mack Reynolds wrote science fiction about a war between massive dictatorial Betaland and small outnumbered and democratic Alphaland. To compensate for their numerical inferiority, a squad of daring Alphaland commandos attacked the Betaland national databank center and erased the entire Betaland database. The ensuing chaos was the downfall of Betaland.
Now a days it doesn't require highly trained commandos, apparently plain old burglars can do the same thing. Thieves broke into country offices in Tennessee and swiped laptops containing the country voter list, names, addresses and social security numbers.