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This email virus infected millions of computers worldwide, causing chaos by deleting files.
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Hackers stole credit card data from over 94 million TJX customers, highlighting security flaws in big stores.
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Estonia faced major disruptions from cyber-attacks, suspected to be linked to Russia.
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Target's systems were breached, compromising credit and debit card details of about 40 million customers.
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Sony Pictures suffered a breach, leaking unreleased films and sensitive data, exposing weak defenses.
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WannaCry infected hundreds of thousands of computers globally, demanding ransom payments in Bitcoin.
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Cambridge Analytica accessed millions of Facebook users' data without consent, raising privacy concerns.
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Hackers breached SolarWinds' software updates, accessing thousands of organizations, including top US government agencies, revealing software supply chain vulnerabilities.