A hack of millions of Facebook users’ data has revealed that the company’s CEO Mark Zuckerberg uses the secure messaging app Signal, one of the biggest competitors to the Facebook-owned WhatsApp.
Dave Walker, a cybersecurity researcher, discovered that Zuckerberg was among more than 533 million Facebook users whose information was leaked into the hack from 2019, Mashable reported.
“In another event, Mark Zuckerberg also respects his own privacy by using a chat app that has one-to-end encryption and is not owned by @facebook,” Walker tweeted along with a photo of Zuckerberg’s edited phone number, which he linked to a signal account.
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Signal, one of WhatsApp̵
Following the news of Zuckerberg’s alleged use of Signal, the company retweeted a link to the writing of the story: “By May 15, WhatsApp is accepting the Terms of Service quickly, Mark leading by example.”
Details from more than 533 million Facebook users have been found available on a hacker site. The information appears to be several years old, but it is another example of the enormous amount of information collected by Facebook and other social media sites, and the limits of how secure this information is.
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The availability of the dataset was first reported by Business Insider. According to this publication, it has information from 106 countries, including phone numbers, Facebook IDs, full names, locations, dates of birth, and email addresses.
“This is old data that was previously reported in 2019,” Menlo Park, a California-based company, said in a statement. “We found and resolved this issue in August 2019.”
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Fox Business has reached out to Facebook with a request for comment, but did not respond before the announcement.
The Associated Press contributed to this report.