Warning – 19 Billion Compromised Passwords Have Been Published Online

Critical Insights from FortiGuard Labs – 2025 Global Threat Landscape Report: “Our latest global threat landscape report uncovers how automation, AI, and stolen credentials are fueling faster, more scalable cyberattacks—outpacing defenders across industries and geographies.”

Forbes: Warning – 19 Billion Compromised Passwords Have Been Published Online – “Imagine having access to 19,030,305,929 passwords that were compromised by leaks and breaches over the course of 12 months from April 2024 and involving 200 security incidents. Imagine that only sources where email addresses were available for consumption alongside the stolen password were included in this massive database. Oh, and forget about including any of those word-list compilations, such as RockYou, that regularly do the rounds but are about as useful to a criminal hacker as a chocolate router. Finally, get to grips with the fact that this dataset only includes passwords that have become publicly available in criminal forums online. Once you digest all of this, you can appreciate how huge, in all senses of the word, this really is, especially to any hacker with criminal intent. The analysis, published May 2 by the Cybernews research team, makes for truly eye-opening reading. It’s so wide-ranging and security-scary in equal measure that it’s hard to know where to start, so the beginning seems as good a place as any: password laziness and reuse. Of the 19,030,305,929 passwords that ended up exposed online, only 6% of them, or 1,143,815,266 if you like to be precise, were unique. Switch that around to 94% of them being reused across accounts and services, whether by the same or different people is moot, and you can see why the average cybercriminal gets very excited about the hacking potential such lists provide. Now throw in that 42% of the passwords were short, way too short, being only 8-10 characters in length. That now opens up the hacking potential to brute force attacks as well as credential stuffing. Ah, yes, and it just keeps getting worse; 27% consisted of only lowercase letters and digits, no special characters or mixed case…”