CCleaner
Avast target of cyber-security attack, company and Czech counterintelligence say
Avast said it kept the VPN profile open to track the cyber intruder.
Hackers used Avast's CCleaner breach to attack technology companies
Hackers who broke into widely used computer utility software in August tried to infect machines at Microsoft, Intel and other top tech firms
CCleaner hacked, 2.2 million PCs affected
Only the cloud version could be updated automatically to remove the bad code.
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