Blog de seguridad

Análisis de filtraciones, información sobre seguridad y consejos prácticos para mantener tus datos a salvo.

30 de mar. de 2026 Análisis de filtraciones

Collection #1: The 773 Million Email Mega-Dump That Fueled Credential Stuffing

In January 2019, a massive credential dump called \"Collection #1\" surfaced with 773 million unique email addresses and 21 million unique passwords, compiled from years of smaller breaches.

Leer más
23 de mar. de 2026 Análisis de filtraciones

Adobe's 2013 Breach: 153 Million Passwords Encrypted the Wrong Way

Adobe encrypted 153 million passwords using 3DES-ECB instead of hashing them. The result was a breach so badly handled it became a crossword puzzle — literally. Here's why encryption mode matters.

Leer más
16 de mar. de 2026 Análisis de filtraciones

T-Mobile's Repeated Breaches: A Pattern of Security Failures

T-Mobile has suffered major breaches in 2018, 2019, 2020, 2021, 2022, and 2023. With hundreds of millions of records exposed, the pattern reveals systemic security challenges at one of America's largest carriers.

Leer más
9 de mar. de 2026 Análisis de filtraciones

Capital One: How a Cloud Misconfiguration Exposed 106 Million Records

A former AWS employee exploited a misconfigured web application firewall to steal the personal data of 106 million Capital One applicants and customers, including Social Security numbers and bank account numbers.

Leer más
2 de mar. de 2026 Análisis de filtraciones

Marriott-Starwood: 500 Million Hotel Guests Had Their Data Stolen

Attackers spent four years inside the Starwood reservation system before Marriott discovered the breach. Passport numbers, credit cards, and travel histories of half a billion guests were exposed.

Leer más
26 de feb. de 2026 Análisis de filtraciones

When Breaches Hit Billions: What XSS.IS and Collection #1 Teach Us

Nearly 19 billion records sit in breach databases worldwide. The largest single incident—XSS.IS Combolist with 2.47 billion credentials—reveals how password reuse transforms individual hacks into catastrophic exposure chains that threaten everyone.

Leer más
23 de feb. de 2026 Análisis de filtraciones

Equifax: When a Credit Bureau Loses 147 Million Social Security Numbers

The 2017 Equifax breach exposed Social Security numbers, birth dates, and addresses for nearly half the U.S. population. This breach changed the conversation about corporate responsibility for personal data.

Leer más
18 de feb. de 2026 Análisis de filtraciones

XSS.IS Combolist: Inside the 2.4 Billion Record Breach That Exposed Everything

With 2.47 billion records, the XSS.IS Combolist remains the largest credential exposure in history. Leaked in February 2019, it contained usernames, email addresses, and plaintext passwords—a master key to digital identities worldwide.

Leer más
18 de feb. de 2026 Análisis de filtraciones

The Yahoo Breach: How 3 Billion Accounts Were Compromised

In the largest data breach ever recorded, Yahoo disclosed that all 3 billion of its user accounts were stolen. Here's what happened, why it matters, and what it teaches us about corporate cybersecurity.

Leer más
13 de nov. de 2016 Análisis de filtraciones

LeakedSource Analysis of FriendFinder Networks Hack

Sexual secrets for hundreds of millions exposed in largest hack of 2016 November 13th, 2016 Quick links What happened? Who are we? Deleted Users Passwords Emails Languages Site Growth and Usage...

Leer más
20 de oct. de 2016 Análisis de filtraciones

LeakedSource Analysis of Weebly.com Hack

Tens of millions of websites at risk in latest mega breach October 20th, 2016 Additionally we were just given the Adult Friend Finder data so once we verify it, we'll add that as well.

Leer más
11 de oct. de 2016 Análisis de filtraciones

LeakedSource Analysis of Evony.com Hack

October 11th, 2016 33 Million gamer accounts stolen Surprisingly they also stored the passwords in unsalted SHA1 next to the MD5 which makes no sense but anyway, here is the top list of most...

Leer más

Soporte de LeakedSource

Asistente de IA: una persona revisa los chats derivados

Este chat se ha derivado a nuestro equipo de soporte: una persona te responderá aquí o por correo electrónico. Si aún no nos has dado tu correo electrónico, escríbelo aquí para que podamos contactarte.
¡Hola! Soy el asistente de LeakedSource. Pregúntame sobre análisis, filtraciones, facturación o tu cuenta.