The messaging app handed over user data on thousands of Telegram users to U.S. authorities over 2024, the data reveals.

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The 2021 breach affected at least 2 million Washington state residents, and tens of millions more customers around the United States.

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U.S. Treasury officials confirmed a cyberattack on its systems in early December 2024.

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The gift card store secured the public cloud storage server containing customer ID documents, which was not protected with a password.

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Treasury officials attributed the December theft of unclassified documents to China.

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The data was found exposed on an Amazon cloud server, and contained precise location data on thousands of vehicles.

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The data-loss startup says it was targeted as part of a "wider campaign to target Chrome extension developers."

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Blaming victims, months of silence, and suing security researchers all featured in cybersecurity in 2024.

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Sharing security advice can go a long way in protecting your loved ones from the most common and damaging online threats.

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The prolific ransomware gang says it hacked at least 66 companies by exploiting a bug in tools made by Cleo Software.

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The very best work from our friends at competing publications.

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This glossary includes the most common terms and expressions TechCrunch uses in our security reporting, and explanations of how — and why — we use them.

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LockBit is believed tobe responsible for at least $500 million in ransom payments alone.

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The cyberattack on Ascension ranks as the third-largest healthcare-related breach of 2024.

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A security researcher found customer names and workplace affiliations spilling directly from Hapn's servers.

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A hack on UnitedHealth-owned tech giant Change Healthcare likely stands as one of the biggest data breaches of U.S. medical data in history.

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The hackers stole names, phone numbers, dates of birth and information related to health conditions, treatments and prescriptions.

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Optum's AI chatbot was found exposed online at a time when the healthcare giant faces scrutiny for its use of AI to allegedly deny patient claims.

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Yahoo laid off around 25% of its cybersecurity team, known as The Paranoids, over the last year.

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The PRESS Act, which would protect a journalist's sources, gained unanimous bipartisan support when passed by the House in January.

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