<p>California Secretary of State Kevin Shelley on Thursday announced measures to improve election security in the wake of a report describing how votes can be easily manipulated by hacking into an electronic voting system used across California.</p>
<p>One in four California voters, including those in Alameda County, are expected to cast ballots in next month's presidential primary on electronic voting systems made by Diebold Election Systems. Last week, computer scientists hired by the state of Maryland to hack its Diebold voting system announced they had successfully changed vote tallies on touch-screen voting machines, altered ballots and seized control of a central vote-counting computer.</p>