Security Experts:

Connect with us

Hi, what are you looking for?


Data Protection

400 Million Accounts Allegedly Stolen From FriendFinder Networks

Breach verification service LeakedSource claims it has obtained over 400 million user accounts stolen by hackers from social networking and multimedia entertainment company FriendFinder Networks, Inc.

Breach verification service LeakedSource claims it has obtained over 400 million user accounts stolen by hackers from social networking and multimedia entertainment company FriendFinder Networks, Inc.

According to LeakedSource, 412,214,295 accounts have been compromised, including usernames, email addresses and passwords. The data appears to originate from six websites operated by FriendFinder Networks and its subsidiaries.

There are nearly 340 million accounts from Adult Friend Finder, over 62 million from, roughly 2.5 million from and, and more than 7.1 million from, which FriendFinder Networks sold earlier this year to Penthouse Global Media, Inc. Approximately 35,000 accounts come from an unidentified domain.

Unfortunately, many of the passwords were stored in clear text, while the rest were converted to lowercase and stored as SHA1 hashes, which are easy to crack. LeakedSource says it has managed to crack 99 percent of the hashes.

The leaked data can be highly useful to malicious actors, especially the 5,650 .gov accounts and the 78,301 .mil accounts. The compromised information also includes data associated with more than 15 million accounts that had been deleted by users.

LeakedSource has decided not to make the compromised data searchable on its website for the general public. If confirmed, this is the largest incident analyzed by the breach notification service.

The company said the user data was stolen by attackers via a local file inclusion vulnerability disclosed by a hacker roughly one month ago. CSO reported at the time that the hacker exploited the flaw to show that it exposed information on Adult Friend Finder databases.

SecurityWeek has reached out to FriendFinder Networks for comment and will update this article if the company responds.

This would not be the first time the details of Adult Friend Finder users are exposed. In May 2015, the website launched an investigation into a breach that reportedly affected over 3.5 million customers.

Last year, hackers also breached the systems of Avid Life Media, the owner of online adultery service Ashley Madison. The details of more than 30 million Ashley Madison users were leaked on the Internet.

Related: Lessons from the Movie Industry – Sequels are Profitable

Related: The Cyber Risk of Mixing Business with Pleasure

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join this webinar to learn best practices that organizations can use to improve both their resilience to new threats and their response times to incidents.


Join this live webinar as we explore the potential security threats that can arise when third parties are granted access to a sensitive data or systems.


Expert Insights

Related Content

Application Security

Cycode, a startup that provides solutions for protecting software source code, emerged from stealth mode on Tuesday with $4.6 million in seed funding.

Data Protection

The CRYSTALS-Kyber public-key encryption and key encapsulation mechanism recommended by NIST for post-quantum cryptography has been broken using AI combined with side channel attacks.

Data Protection

The cryptopocalypse is the point at which quantum computing becomes powerful enough to use Shor’s algorithm to crack PKI encryption.

Application Security

Many developers and security people admit to having experienced a breach effected through compromised API credentials.


The three primary drivers for cyber regulations are voter privacy, the economy, and national security – with the complication that the first is often...

Application Security

Fortinet on Monday issued an emergency patch to cover a severe vulnerability in its FortiOS SSL-VPN product, warning that hackers have already exploited the...

Cybersecurity Funding

CommandK announced that it has raised $3 million in a seed funding round for a solution designed to help organizations secure sensitive data.

Cybersecurity Funding

Los Gatos, Calif-based data protection and privacy firm Titaniam has raised $6 million seed funding from Refinery Ventures, with participation from Fusion Fund, Shasta...