Facebook said it had purged 65 Israeli accounts, 161 pages, dozens of groups and four Instagram accounts – many of which were linked to an Israeli-based firm.
Facebook said in a statement it was introducing a "one-strike" policy for use of Facebook Live, temporarily restricting access for people who have faced disciplinary action for breaking the company's most serious rules anywhere on its site.
Company spokesman says the attack had "all the hallmarks of a private company that has been known to work with governments to deliver spyware that has the ability to take over mobile phone operating systems."
The Royal Commission investigation will look into the shooter's activities, use of social media and international connections, as well as whether there were inappropriate priority settings in counter-terrorism resources.
US President Donald Trump has chosen to use his powerful platform to defend the free speech of conspiracy theorists as his allies visit the White House and criminalise political dissent at home.
Facebook banned right-wing conspiracy theorist Alex Jones, controversial figure Louis Farrakhan and other extremist figures for violating its policies against hate and violence.
Facebook said it may have "unintentionally uploaded" email contacts of up to 1.5 million new users since May 2016, adding that the "contacts were not shared with anyone and we are deleting them."
The social media firm set aside $3bn to deal with an expected US Federal Trade Commission fine, which could eventually amount to $5bn. But the controversies have had little impact on the tech behemoth’s bottom line.
The one-time charge slashed Facebook's first-quarter net income considerably, although revenue grew by 25 percent in the period. The FTC has been looking into whether Facebook broke its own 2011 agreement promising to protect user privacy.
Global terror groups are relying on the power of online networks to drive discussions and shape opinions - often without any inkling of their real motives.
People on social media, both in France and abroad, have expressed frustration that other disasters - from the Syrian and Iraq refugee crisis to the Grenfell Tower fire in London - have not received anything like the same degree of support.
Facebook has been hit by a number of privacy-related issues recently, including a glitch that exposed passwords of millions of users stored in readable format within its internal systems to its employees.
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