Experts say Twitter breach troubling, undermines trust

HONG KONG (AP) — A breach in Twitter’s security that allowed hackers to break into the accounts of leaders and technology moguls is one of the worst attacks in recent years and may shake trust in a platform politicians and CEOs use to communicate with the public, experts said Thursday.

The ruse discovered Wednesday included bogus tweets from Barack Obama, Joe Biden, Mike Bloomberg and a number of tech billionaires including Amazon CEO Jeff Bezos, Microsoft co-founder Bill Gates and Tesla CEO Elon Musk. Celebrities Kanye West and his wife, Kim Kardashian West, were also hacked.

Hackers used social engineering to target some of Twitter’s employees and then gained access to the high-profile accounts. The attackers sent out tweets from the accounts of the public figures, offering to send $2,000 for every $1,000 sent to an anonymous Bitcoin address.

Cybersecurity experts say such a breach could have dire consequences since the attackers were tweeting from verified, globally influential accounts with millions of followers.

“If you receive a tweet from a verified account, belonging to a well-known and therefore trusted person, you can no longer assume it’s really from them,” said Michael Gazeley, managing director of cybersecurity firm Network Box.

Reacting to the breach, Twitter swiftly deleted the tweets and locked down the accounts to investigate. In the process it prevented verified users from sending out tweets for several hours.

The company said Thursday it has taken “significant steps to limit access to internal systems and tools.”

Many celebrities, politicians and business leaders often use Twitter as a public platform to make statements. U.S. President Donald Trump, for example, regularly uses Twitter to post about national and geopolitical matters,...