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51Talk Online Education

listed as 51talk.com · Claimed by Lockbit3 · listed 1 year ago

16m
Age
since listed · data leaked

Status timeline

  1. ListedMar 18, 2025
  2. Data leakeddate unknown

At a glance

Group
Lockbit3
Status
Data leaked
Country
Philippines
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

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

Other recent disclosures by lockbit3

lockbit3 has been linked to 2,016 public victims on Darkfield. A sample of the most recent:

See the full lockbit3 dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,085 disclosures indexed across all operators we track. Geographically, 51talk.com is reported in Philippines, a country with 11 ransomware disclosures in our corpus.

If your organisation is affected

A listing by lockbit3 means 51talk.com appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on lockbit3's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.