Getting hacked on Twitter is fast becoming a rite of passage for big corporations, but Tuesday's attack on the Associated Press could be a tipping point and shows that social networks must do more to keep their users safe, security experts said.
Wider use of two-factor authentication, which can involve an access code being sent to a user on a second device such as a smartphone, is one possible solution. Such a mechanism could be introduced selectively, some experts said, for high profile accounts such as celebrities and large corporations.
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"Twitter needs to get on board and make two-factor authentication available ... as fast as possible," said Andrew Storms, director of security operations at nCircle Security.
The AP's Twitter account was hacked Tuesday morning, resulting in a bogus tweet reporting that there were "two explosions in the White House and Barack Obama is injured." A group calling itself the Syrian Electronic Army claimed responsibility, via their own Twitter account.
The tweet was only visible for a matter of minutes, but the Dow Jones industrial average took a nose dive immediately after it was posted before recovering several minutes later. Unlike some previous hacking incidents, "this one had a real-world impact on the markets," noted Steve Brunetto , director of product management at EdgeWave, a social media and email security company.
The AP joins a list of companies that have recently been hacked on Twitter. Three CBS brands -- 60 Minutes, 48 Hours and a Denver news affiliate -- were hijacked this past weekend. The New York Times, The Wall Street Journal and The Washington Post have also been hacked in recent months. In February, Twitter announced the site itself had been breached.
The Twitter accounts of Burger King and the Jeep car company have also been compromised. After those incidents, Twitter urged users to be smarter with their passwords and in how they use the site.
Twitter has remained largely quiet following Tuesday's AP attack. "We don't comment on individual accounts for privacy and security reasons," a spokesman said. But now may be the perfect time for the social network to employ stronger safeguards to prevent future account breaches, some experts said.
"Twitter needs to move faster in stepping up its cyber security efforts," EdgeWave's Brunetto said.
Mark Risher, CEO at Impermium, an Internet security firm based in Redwood City, California, said he thinks Twitter already takes security seriously, but Tuesday's attack does "elevate" concerns, he said.