Nearly two months after news surfaced about software updates from SolarWinds being used to distribute a backdoor Trojan called Sunburst/Solorigate to some 18,000 organizations worldwide, troubling questions remain about the scope and impact of the breach. The campaign, which the US government and others have described as a highly sophisticated espionage operation by a Russia-backed group, has raised broad fears of sensitive data being stolen from several US government agencies and large companies.

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