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1k Data Breaches Later, the Disclosure Lag Is Worse

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Today, I loaded the 1,000th data breach into Have I Been Pwned. Reflecting on that milestone number, I pondered how to mark the occasion in writing, and what immediately came to mind was a very simple question: why is it still needed? Especially considering the emergence of privacy regulations such as GDPR and CCPA in the 12 and a half years since I started HIBP, what possible purpose does it still serve? The title kinda gives the answer away, and the big number we hit today coincided with another pattern that makes everything worse: increasingly long lag times for disclosure.

This is all going to be anecdotal, and as far as I know, there are no hard numbers for me to cite, but the evidence is everywhere. Here's what I mean:

New breach: Cruise operator Carnival was targeted in a ShinyHunters “pay or leak” attack last week. 8.7M records with 7.5M email addresses and loyalty program data were published yesterday. 85% were already in @haveibeenpwned. Read more: https://t.co/QhqNt0WucV — Have I Been Pwned (@haveibeenpwned) April 24, 2026

That was the 24th of April, five days after news of the incident had broken. Given ShinyHunters' MO, Carnival would have known about the breach many days before they ratcheted up extortion pressure by announcing the impending leak on their website. The subsequent leak on the 24th was very public: an announcement was posted to the group's dark-web site, the data itself was published to their clear-web site, and industry commentary followed:

🚨 Massive Data Breach

Carnival Corporation (https://t.co/pGlchZ1yFy) reportedly impacted — 8.7M+ customer records exposed

📊 Alleged data includes:

• Full names & email addresses

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