Ransomware victim disclosure

51Talk Online Education

listed as 51talk.com · Claimed by lockbit3 · listed 1 year ago

14m

Age

since listed · data leaked

Status timeline

Listed
Mar 18, 2025
Data leaked

At a glance

Group: lockbit3
Status: Data leaked
Country: PH
Sector: Education
Listed on leak site: Mar 18, 2025

About the victim

AI dossier — public-source company profile

51Talk is a global online English education platform for children aged 3-15, offering one-on-one lessons with native English-speaking teachers. The company is listed on NYSE American (ticker: COE) and has been operating for over 10 years with a presence in multiple countries across Asia and beyond.

Industry: Online Education & Language Learning
Address: 60 Paya Lebar Road #12-03 Paya Lebar Square, Singapore 409051
Founded: 2011

Attack summary

Severity: high — Confirmed exfiltration of significant operational and staff data from a publicly-traded education company serving minors; exposure of employee records and internal operational databases poses privacy and security risks. Data published status confirms breach validation.

LockBit3 claims to have exfiltrated multiple database backup files totalling approximately 12GB, including activity logs, staff records, and operational task data from 51Talk's systems.

high

Data the group says was taken

AI dossier — extracted from the leak post

Activity logs (backup)
Staff/employee records (backup)
Operational data (backup)
Task management data (backup)

The group's post references roughly 4 backup files advertised proof files.

What the group claims

A lot of interesting info: 1G - 51TalkActivity_backup_2025_01_25_030001_1281267.bak 1G - 51TalkNewStaff_backup_2025_01_25_030001_1281267.bak 1G - 51TalkOA_backup_2025_01_25_030001_1437541.bak 9G - 51TalkOAtask_backup_2025_01_25_030001_1281267.bak...

Sources

Victim site51talk.com
Leak posthttp://lockbit3g3ohd3katajf6zaehxz4h4cnhmz5t735zpltywhwpc6oy3id.onion/post/aJgAPtwsixzCclDC67d9aab3014ca

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About lockbit3

LockBit 3.0, also known as LockBit Black, is a prominent ransomware-as-a-service operation that emerged in June 2022 as the third major iteration of the LockBit ransomware family, operating with primarily financial motivations and becoming one of the most prolific ransomware groups globally. The group is believed to operate from Russia or former Soviet states, functioning as a sophisticated RaaS platform that recruits affiliates to conduct attacks while the core group maintains the ransomware infrastructure and negotiates with victims. LockBit 3.0 employs multiple initial access vectors including exploitation of remote desktop protocols, vulnerable VPN appliances, and phishing campaigns, utilizing a fast-encrypting ransomware payload that can complete network-wide encryption in minutes while implementing triple extortion tactics that include data theft, encryption, and threats to leak stolen information on their dedicated leak site called "LockBit Black Blog." The group has claimed responsibility for attacks against thousands of organizations worldwide, with notable victims including major corporations and critical infrastructure entities across their primary target countries of the United States, France, United Kingdom, Germany, and Italy, focusing heavily on business services, technology, manufacturing, healthcare, and government sectors. Despite law enforcement disruptions including Operation Cronos in February 2024 which temporarily seized their infrastructure and websites, LockBit has demonstrated resilience by quickly rebuilding their operations and continuing to recruit new affiliates and victims. The group has been linked to 2,016 public disclosures across our corpus. First observed on a leak site on June 29, 2022; most recent post December 5, 2025. The operation is currently active.

Timeline of this disclosure

March 18, 202551talk.com listed by lockbit3on the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 694 disclosures indexed across all operators we track. Geographically, 51talk.com is reported in PH, a country with 6 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.