A computer glitch at a Computershare Web site, www.vote.proxy-direct.com, made it possible for mutual fund shareholders to vote proxies under other people's names, Dow Jones Newswires reports. The mistake also left personal information available online, compromising shareholders.

Security expert Bruce Schneier discovered the problem and made it known on his weblog, "Schneier on Security." Shareholders with valid proxy numbers could simply add more digits and get access to another person's information, including their ability to vote, Schneier found.

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