A world in which private companies manufacture and sell cyber weapons is more dangerous for consumers, businesses of all sizes, and governments. We take this threat seriously and have stopped the use of certain cyber weapons that are manufactured and sold by a group called Sourgum. The deactivated weapons were used in precision attacks against more than 100 victims around the world, including politicians, human rights activists, journalists, academics, embassy employees and political dissidents. To limit these attacks, we focused on two actions. First, we built safeguards into our products against the unique malware that Sourgum created, and we shared those safeguards with the security community. Second, we released a software update that protects Windows customers from exploits that Sourgum used to spread its malware. We performed this work in close collaboration with the Citizen Lab at the Munk School of the University of Toronto.

We believe Sourgum is an Israel based …



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