Saturday, September 26, 2026 Breach Index $4.5B lost to breaches in 2026 · 103 breaches made public

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$4.53 billion publicly reported as lost to data breaches, hacks and fines in 2026.

A floor, not a ceiling: most breached organisations never publish what an incident cost them.

  1. Jan$1.6B
  2. Feb$21M
  3. Mar$418M
  4. Apr$648M
  5. May$94M
  6. Jun$498M
  7. Jul$256M
  8. Aug$255M
  9. Sep$738M
Breaches made public
103
Accounts exposed
531.5M
Crypto hacks
281
Lost to crypto theft
$2.5B

Recently disclosed

  • LimeLeads 17.8M accounts · Sep 22
  • Carhartt 12.9M accounts · Aug 25
  • Suno 55.3M accounts · Jul 20
  • Paidwork 23.3M accounts · Jul 19
  • June 2026 Stealer Logs 56.3M accounts · Jun 15
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Sources: Have I Been Pwned, DeFiLlama, SEC filings, public reports. Updated September 25, 2026.