Hacks, thefts and disruption: The worst data breaches of 2025

Published on December 19, 2025
TechCrunch looks back at the biggest data breaches, disruptive cyberattacks, and damaging hacks of 2025, from the raiding of U.S. government databases to a hack every month in South Korea.
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OpenAI is reportedly trying to raise $100B at an $830B valuation

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The ChatGPT maker is aiming to raise the funding by the end of the first quarter in 2026, and the company may ask sovereign wealth funds to invest in the round.

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