Substack did not specify the number of users affected by the data breach
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— Sources secondairesSubstack Confirms Data Breach, "Limited User Data" Compromised
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A supply chain attack on Notepad++ update process was linked to compromised hosting infrastructure
US Data Breaches Hit Record High but Victim Numbers Decline
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Non-profit ITRC says the number of data breaches increased 5% annually to reach a record total in 2025
AI Security Threats Loom as Enterprise Usage Jumps 91%
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Zscaler analysts found critical vulnerabilities in 100% of enterprise AI systems, with 90% compromised in under 90 minutes
Over 80% of Ethical Hackers Now Use AI
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Bugcrowd study reveals 82% of security researchers now use AI, a big increase from 2023 figures
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Under Armour Investigates Data Breach After 72 Million Records Allegedly Exposed
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Under Armour said there is no evidence at this point to suggest the incident affected systems used to process payments or store customer passwords
Report Fraud Promises to Streamline Fight Against Economic Crime
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City of London Police has launched the UK’s national Report Fraud service